Trigeminal Trophic Syndrome (TTS)

Trigeminal trophic syndrome is a rare skin and nerve disorder that appears after damage to the trigeminal nerve (the 5th cranial nerve that carries feeling from the face). When this nerve is injured—by surgery, stroke, infection, trauma, or other causes—the skin supplied by that nerve becomes numb or abnormally tingly/itchy. Because the area feels odd (numbness, crawling, burning, “ants”), people rub, scratch, or pick it—often without realizing how hard or how often. Over weeks to months this self-manipulation produces a persistent, sickle-shaped ulcer, classically on the side of the nose (the nasal ala), sometimes extending to the cheek, lip, eyelid, or scalp. The tip of the nose is usually spared because it is supplied by a different small nerve branch. Typical core features form a “triad”: anesthesia (numbness), paresthesia (abnormal sensations, often itch), and ulceration in the V1/V2/V3 dermatomes of the trigeminal nerve. DermNet®EyeWiki

Trigeminal Trophic Syndrome (TTS) is a rare skin and nerve problem that happens after the trigeminal nerve (the big feeling nerve of the face) is injured. Because the nerve is damaged, the skin that nerve supplies becomes numb or feels odd (tingling, crawling, burning). Those strange feelings make a person rub, scratch, or pick the area again and again without realizing how much damage they are doing because the area is partly numb. Over time, a very typical, slowly enlarging sore (an ulcer) appears—most often along the side of the nose (the “ala nasi”). The sore tends to be crescent-shaped, may scar, and can come back if the rubbing or picking continues. The tip of the nose is usually spared because it gets sensation from a different small nerve. TTS is usually one-sided, develops weeks to many years after the nerve injury, and is diagnosed mainly by history and examination after other look-alike conditions are excluded. DermNet®PubMed

Doctors describe a typical “triad” for TTS: (1) loss of normal feeling (anesthesia or reduced sensation) in a patch of skin supplied by the trigeminal nerve, (2) abnormal feelings like tingling, itching, or crawling (paresthesia/dysesthesia), and (3) a persistent, self-inflicted facial ulcer—commonly at the alar side of the nose. Recognizing this triad prevents unnecessary biopsies and surgeries and helps focus care on protecting the skin and calming the nerve. PMCMDedge

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Why it happens — the simple mechanism

The trigeminal nerve brings touch, pain, temperature, and other sensations from the face to the brain. If that pathway is injured anywhere—at the skin nerve endings, along the branches (V1, V2, V3), in the trigeminal ganglion (a relay station), or inside the brainstem—the messages become abnormal. The affected skin may feel “not right” (itchy, prickly, crawling, burning) or may be numb. Because it feels odd or numb, people unconsciously rub or pick it to try to relieve the feeling or to “check” the area. Since the pain signal is blunted, the person may not notice how much harm is being done. Repeated minor trauma then causes a poorly healing sore. This is why patient education and gentle protection of the area are so important in any treatment plan. DermNet®PubMed

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Types

Doctors do not use a single official “typing” system, but it helps to sort TTS in a few practical ways. These simple categories can guide thinking and care:

1. By where the nerve is injured (pathway level)

   • Peripheral TTS: injury to the small skin nerves or to the main trigeminal branches on the face (V1 ophthalmic, V2 maxillary, V3 mandibular). Example: after a procedure for trigeminal neuralgia or after facial trauma.

   • Ganglion/Root TTS: injury around the Gasserian (trigeminal) ganglion or root, for example after alcohol injection or rhizotomy to treat trigeminal neuralgia.

   • Central TTS: injury inside the brainstem or brain pathways (for example after a stroke in the lateral medulla—Wallenberg syndrome). DermNet®PubMed

2. By what triggered it (etiology)

   • Iatrogenic (procedure-related): after rhizotomy, alcohol injection, radiofrequency ablation, stereotactic radiosurgery, or other operations done to treat trigeminal neuralgia.

   • Vascular: after certain strokes affecting the trigeminal sensory pathways.

   • Infectious: after shingles (herpes zoster) involving trigeminal branches; less often after other infections that affect trigeminal pathways.

   • Neoplastic (tumor-related): tumors near the trigeminal nerve or its ganglion.

   • Traumatic: head/facial injuries or operations.

   • Idiopathic/degenerative: no clear single cause found (rare). DermNet®PMC

3. By dermatome (which branch is involved)

   • V2-predominant (maxillary): the commonest pattern—explains the alar nasal location.

   • V1 (ophthalmic) or V3 (mandibular): less common; may involve periorbital skin, scalp, or lip/cheek/jawline respectively. DermNet®

4. By timing

   • Early onset: weeks to months after injury.

   • Delayed onset: often about a year, but can be many years later. DermNet®PubMed

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Causes

Below are common, documented, or reported triggers that can lead to TTS. Each one injures the trigeminal sensory pathway and sets up the itch-numbness-picking-ulcer cycle.

1. Trigeminal rhizotomy (nerve destruction) for trigeminal neuralgia. Purposeful injury to stop neuralgia pain can later create numbness/paresthesia that drives picking and ulceration. DermNet®

2. Alcohol injection (Gasserian ganglion block). A classic cause; the injected alcohol damages sensory fibers to reduce pain but may lead to TTS months later. DermNet®

3. Radiofrequency lesioning of the trigeminal root. Heat lesions relieve pain but can cause hypoesthesia and dysesthesia that promote self-trauma. PubMed

4. Stereotactic radiosurgery (e.g., Gamma Knife) for trigeminal neuralgia. Rarely, nerve damage after SRS has been linked with TTS in case reports. PMC

5. Microvascular decompression or other cranial operations near the trigeminal nerve. Surgical manipulation can produce lasting sensory changes. PubMed

6. Craniotomy for unrelated conditions. Any operation that disturbs trigeminal pathways can be a trigger later on. PMC

7. Facial trauma. Blunt or penetrating injury can injure branches (V1/V2/V3) and start the cycle. PMC

8. Wallenberg syndrome (lateral medullary stroke). A well-known central cause because the stroke injures sensory tracts. PMC

9. Other brainstem strokes affecting trigeminal pathways. Not only the lateral medulla; trigeminal sensory tracts elsewhere may be involved. PubMed

10. Herpes zoster (shingles) involving trigeminal branches, including herpes zoster ophthalmicus. Post-herpetic neuropathy is a frequent infectious trigger. PMCPubMed

11. Herpes simplex affecting trigeminal pathways. Less common than zoster, but reported among infectious triggers. PMC

12. Leprosy (Hansen’s disease) involving facial/trigeminal nerves. Chronic infection may damage the nerve and predispose to TTS-like ulcers. PMC

13. Syphilis with trigeminal pathway involvement. Historically reported as a potential contributor and key part of the differential. PMC

14. Intracranial tumors near the trigeminal nerve (e.g., meningioma). Pressure or surgical treatment of these tumors can injure the nerve. Western Journal of Emergency Medicine

15. Trigeminal schwannoma or other skull-base tumors. Directly arise from or compress the nerve. PubMed

16. Iatrogenic dental or maxillofacial injuries (rare). Deep dental, sinus, or jaw procedures may injure distal branches; persistent dysesthesia can lead to skin manipulation. PubMed

17. Amyloid deposition affecting the CNS or trigeminal nerve (rare). Reported historically as an associated condition. PMC

18. Post-encephalitic sequelae. Old literature notes cases after central nervous system inflammation. PMC

19. Birth-related neurologic injury with later trigeminal involvement (rare). Historical case listings include neonatal neurologic complications later linked to TTS. PMC

20. Idiopathic cases. In a small number, no single clear cause is found, but the clinical pattern still fits TTS. PubMed

Important note: these causes are not “common” in the general public; they are causes among people who develop TTS, a very rare condition overall. Doctors consider them based on the person’s history and examination and always rule out other diseases that can mimic TTS before confirming the diagnosis. PubMed

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Symptoms

People with TTS do not have all symptoms, but most have several of these:

1. A persistent sore on the face, usually along one alar side of the nose. Often crescent-shaped and slow to heal. DermNet®

2. Reduced normal feeling (numbness) in the same patch of skin. Touch, pain, and temperature can be blunted. PubMed

3. Abnormal feelings: tingling, crawling, itching, burning. These odd sensations drive rubbing and picking. PubMed

4. Repeated rubbing, scratching, or picking of the area. Often admitted by the patient when asked gently. DermNet®

5. Little or no pain from the sore itself. Because the area is numb, the ulcer can be surprisingly painless. PMC

6. Crusting around the ulcer. Hard crusts that are tempting to remove, restarting the injury cycle. DermNet®

7. Sparing of the nasal tip. The tip is usually unaffected because it has a different sensory supply. DermNet®

8. Extension to nearby skin (cheek, upper lip). The ulcer can spread along the same nerve territory. DermNet®

9. A feeling of a blocked nostril or foreign body. This is due to altered sensation, not always a real blockage. DermNet®

10. Scarring and notching or loss of part of the ala nasi over time. Repeated trauma can remove cartilage and cause a “sneer.” DermNet®

11. Secondary infection of the ulcer. The open sore can become infected, occasionally leading to deeper problems like cellulitis. Western Journal of Emergency Medicine

12. Sleep disturbance and distress from constant abnormal sensations. The dysesthesia can be very bothersome. PubMed

13. Psychological strain (anxiety, OCD-like behaviors) that can worsen picking. Psychiatric comorbidities are reported more often than average. Western Journal of Emergency Medicine

14. Dry eye or reduced blink reflex if the ophthalmic division is involved. Corneal reflex may be reduced with V1 involvement. PMC

15. Unilateral pattern. Nearly always on one side; both sides are very unusual. PubMed

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Diagnostic tests

TTS is mainly a clinical diagnosis (made from a careful story and examination) and by excluding other look-alike causes of facial ulcers such as skin cancers, infections, or autoimmune disease. No blood test “proves” TTS. The tests below help support the diagnosis, find the cause of the nerve injury, and exclude other diseases.

A) Physical examination

1. Detailed skin inspection of the ulcer. The doctor looks for the classic crescent-shaped, painless ulcer on the alar side of the nose, checks for crusts, scars, and whether the nasal tip is spared. This pattern strongly suggests TTS when combined with sensory loss. DermNet®

2. Sensory mapping of the face. Using cotton for light touch and a blunt pin for pin-prick, the doctor compares both sides of the face in V1, V2, and V3 areas to find numb or altered zones that match the ulcer site. PubMed

3. Temperature sensation check. The clinician gently applies something cool/warm (for example, a metal instrument) to see whether temperature sense is reduced in the same dermatome. This helps confirm trigeminal sensory change. PubMed

4. Corneal reflex assessment (blink to light touch). A wisp of cotton touches the cornea to see if blinking is normal; a reduced reflex supports involvement of the ophthalmic division (V1). PMC

5. Look for signs of repeated manipulation. Examination may show excoriations around the ulcer and healing at different stages, consistent with picking. Asking in a non-judgmental way often confirms the behavior. DermNet®

B) Manual/bedside neurologic tests

6. Two-point discrimination on facial skin. Using calipers or simple tools, the clinician checks how close two touches can be felt as separate. Worsening in the affected zone matches nerve dysfunction.

7. Vibration or light-pressure testing with a monofilament. A thin filament gently presses the skin to check detection thresholds; reduced detection supports sensory loss.

8. Masseter muscle strength and jaw movement testing. The doctor asks the patient to clench and move the jaw to evaluate trigeminal motor function (V3). Though TTS is sensory, this helps map overall trigeminal involvement.

9. Jaw jerk reflex. A gentle tap on the chin while the mouth is slightly open can show abnormal reflexes if central pathways are involved.

10. Protective occlusion “trial” (diagnostic-therapeutic). Temporarily covering the area with a soft dressing and re-checking after several days can help confirm the self-trauma component if the lesion improves when picking is prevented. (This does not prove TTS by itself but supports the pattern described in the literature.) PMC

C) Laboratory and pathological tests

11. Skin biopsy of the ulcer edge. Histology in TTS is usually non-specific, but the main goal is to exclude skin cancers (basal cell carcinoma, squamous cell carcinoma) and other diseases that can mimic TTS. Biopsy is strongly recommended when the diagnosis is uncertain. PubMed+1

12. Bacterial culture if purulence or infection is suspected. Helps target antibiotics if secondary infection is present.

13. Tests for infections in the differential diagnosis when indicated: e.g., syphilis serology, HSV/VZV PCR or serology, AFB studies (if leprosy is suspected), or fungal/parasite tests based on travel/exposure. These are done to rule out mimics, not to “prove” TTS. DermNet®

14. Autoimmune screening (selected cases). Tests such as ANA or ANCA may be ordered when autoimmune causes of facial ulcers (e.g., cutaneous lupus, granulomatosis with polyangiitis) are possible. DermNet®

15. Basic blood work (CBC, glucose, inflammatory markers) as supportive tests. These help assess overall health and look for clues to infection or systemic disease when the presentation is atypical.

D) Electrodiagnostic tests

16. Blink reflex testing (electrophysiology). Small electrical stimuli to the supraorbital nerve with recording from eye muscles can objectively assess trigeminal–facial reflex pathways; abnormalities support a trigeminal sensory lesion.

17. Trigeminal somatosensory evoked potentials (SSEPs). Electrical stimulation of trigeminal branches with recordings from the scalp/brainstem evaluates central conduction; abnormal results support a central pathway injury.

18. Nerve conduction/EMG of masticatory muscles (selected cases). Usually normal in pure sensory TTS, but helpful if motor involvement or alternative diagnoses are considered.

E) Imaging tests

19. MRI of the brain and skull base (with attention to the trigeminal nerve and ganglion). MRI can reveal central lesions (strokes, demyelination), tumors, or postsurgical changes along the trigeminal pathway that explain the sensory loss. DermNet®

20. CT/MRI focused on the face and nose. Facial imaging (and sometimes nasal endoscopy) can document alar cartilage loss, rule out destructive infections or malignancy, and show postsurgical changes. Brain/skull-base CT may also help if MRI is contraindicated. DermNet®

Treatment principles

A successful plan usually combines three things:

1. Protect the skin from further self-injury (barriers, dressings, splints).

2. Calm the abnormal nerve signals (neuropathic itch/pain medicines or procedures).

3. Rebuild tissue after behavior is controlled (advanced wound care; sometimes surgery). JAAD

Non-pharmacological treatments (therapies & others)

Each item includes Description, Purpose, and Mechanism—in simple terms.

1. Clear education and a “no-touch” plan

   • Description: Explain the nerve injury and how rubbing keeps the wound open; agree on a strict no-picking rule.

   • Purpose: Break the injury cycle.

   • Mechanism: Awareness reduces subconscious behaviors driven by dysaesthesia. JAAD

2. Occlusive protective dressings (e.g., hydrocolloid, silicone, foam)

   • Description: Soft, cushioned, stick-on covers sized to the nasal ala.

   • Purpose: Physical barrier against rubbing; keeps moisture for healing.

   • Mechanism: Reduces friction; maintains moist wound environment that speeds re-epithelialization. JAAD

3. Custom thermoplastic facial mask or nasal shield

   • Description: Light, molded guard (sometimes attached with straps) covering the ulcer.

   • Purpose: Prevents hands from reaching the area, especially during sleep.

   • Mechanism: Mechanical barrier; habit interruption. PubMed

4. Habit-reversal training (HRT)

   • Description: Behavioral therapy that teaches competing responses (e.g., squeezing a stress ball) when the urge to pick arises.

   • Purpose: Replace damaging picking with harmless actions.

   • Mechanism: Re-wires stimulus-response loops.

5. Cognitive behavioral therapy (CBT)

   • Description: Short-course therapy to manage anxiety and compulsive skin-picking.

   • Purpose: Lower triggers that worsen picking and insomnia.

   • Mechanism: Cognitive reframing and coping skills dampen urges.

6. Mindfulness and urge-surfing techniques

   • Description: Brief daily practice to notice itch/tingle without reacting.

   • Purpose: Reduce automatic scratching.

   • Mechanism: Improves top-down control of habitual behaviors.

7. Scheduled emollient barrier (petrolatum) around—not inside—the ulcer

   • Description: Thin layer 2–3×/day to surrounding skin.

   • Purpose: Reduce dryness and friction at the edges.

   • Mechanism: Occlusion lowers transepidermal water loss and soothes itch.

8. Humidification and saline nasal care

   • Description: Room humidifier; gentle saline sprays/rinses if intranasal dryness.

   • Purpose: Reduce crusts that provoke picking.

   • Mechanism: Moist mucosa = fewer triggers.

9. Gentle wound cleansing

   • Description: Lukewarm saline or pH-balanced cleanser; avoid harsh scrubs and alcohol.

   • Purpose: Keep bioburden low without traumatizing granulation tissue.

   • Mechanism: Supports the wound microenvironment.

10. Non-adhesive contact layers under dressings

    • Description: Silicone mesh or petrolatum gauze as the inner layer.

    • Purpose: Prevents crusts sticking to dressings.

    • Mechanism: Minimizes micro-trauma at each change.

11. Topical barrier film/spray on the periwound skin

    • Description: Transparent polymer film applied every 2–3 days.

    • Purpose: Protects fragile skin from maceration and friction.

    • Mechanism: Forms a breathable protective layer.

12. Desensitization therapy

    • Description: Very gentle, graded touch/temperature exposure around the area.

    • Purpose: Retrain the skin to tolerate sensations without itching.

    • Mechanism: Normalizes sensory processing.

13. Biofeedback for stress-related urges

    • Description: Use of simple devices or apps to slow breathing/heart rate.

    • Purpose: Cut down sympathetic arousal that fuels repetitive behaviors.

    • Mechanism: Enhances parasympathetic tone.

14. Sleeping gloves or finger covers

    • Description: Soft cotton gloves or silicone fingertip caps at night.

    • Purpose: Reduce nocturnal scratching trauma.

    • Mechanism: Dulls nail impact and provides tactile cueing. Mayo Clinic Proceedings

15. Short nails and regular hand care

    • Description: Keep nails trimmed; emollients for fingers to avoid catching.

    • Purpose: Lower risk of tearing the crust and inoculating bacteria.

    • Mechanism: Mechanical risk reduction.

16. Smoking cessation & alcohol moderation

    • Description: Counseling and support as needed.

    • Purpose: Improve microcirculation and healing.

    • Mechanism: Better oxygen delivery and immune function.

17. Nutritional optimization (see diet section below)

    • Description: Adequate protein, vitamins, minerals, hydration.

    • Purpose: Provide substrates for collagen and epithelial repair.

    • Mechanism: Supports fibroblast activity and angiogenesis.

18. Low-level light therapy (photobiomodulation)

    • Description: Clinic-based red/near-infrared light sessions.

    • Purpose: Adjunct to reduce inflammation and promote tissue repair.

    • Mechanism: Mitochondrial stimulation (cytochrome c oxidase) may enhance healing; evidence moderate.

19. TENS (transcutaneous electrical nerve stimulation) around, not on, the ulcer

    • Description: Short daily sessions guided by a clinician.

    • Purpose: Neuromodulate itch/pain signals.

    • Mechanism: Competes with abnormal sensory input.

20. Social support and adherence reminders

    • Description: Family or caregiver helps with dressings and “no-touch” reminders.

    • Purpose: Improve day-to-day consistency.

    • Mechanism: Behavioral reinforcement.

Note: A protective barrier (dressing or shield) plus a neuromodulating medicine is the combination most often reported to help. JAADPubMed

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Drug treatments

Important: Doses below are typical ranges in adults and may not fit every patient. Always individualize with your clinician—consider age, weight, kidney/liver function, other drugs, and pregnancy/breastfeeding. Many uses here are off-label for TTS.

1. Carbamazepine (anticonvulsant/neuromodulator)

   • Dose & Time: Start 100–200 mg at night; titrate to 200–400 mg two to three times daily (common maintenance 400–800 mg/day).

   • Purpose: Reduce neuropathic dysaesthesia/itch and picking.

   • Mechanism: Sodium-channel blockade stabilizes hyperactive sensory neurons.

   • Side effects: Drowsiness, dizziness, hyponatremia, rash; rare blood dyscrasias—monitor labs.

   • Evidence note: Several case reports/series suggest best responses; sometimes the only effective drug in resistant cases. Mayo Clinic ProceedingsPubMed

2. Gabapentin (neuropathic pain modulator)

   • Dose & Time: 100–300 mg at night, titrate to 300–900 mg three times daily (max 3600 mg/day).

   • Purpose: Lessen neuropathic itch/tingle.

   • Mechanism: α2δ calcium-channel subunit binding reduces excitatory neurotransmission.

   • Side effects: Sedation, dizziness, edema.

3. Pregabalin (similar class)

   • Dose & Time: 25–75 mg twice daily, titrate to 150–300 mg twice daily.

   • Purpose/Mechanism: As above; often better tolerated at stable doses.

   • Side effects: Dizziness, weight gain, edema.

4. Amitriptyline (tricyclic antidepressant)

   • Dose & Time: 10–25 mg nightly; may titrate to 50–75 mg nightly.

   • Purpose: Sleep, itch relief, pain modulation.

   • Mechanism: Inhibits reuptake of serotonin/norepinephrine; anticholinergic action may reduce itch.

   • Side effects: Dry mouth, constipation, drowsiness; avoid in certain heart conditions.

5. Duloxetine (SNRI)

   • Dose & Time: 30 mg daily → 60 mg daily.

   • Purpose: Neuropathic symptom control and mood.

   • Mechanism: Enhances descending inhibitory pain pathways.

   • Side effects: Nausea, insomnia, sweating; watch for hypertension.

6. Oxcarbazepine (sodium-channel modulator)

   • Dose & Time: 150 mg twice daily → 300–600 mg twice daily.

   • Purpose/Mechanism: Alternative to carbamazepine with fewer interactions.

   • Side effects: Dizziness, hyponatremia; check sodium.

7. Topical 5% lidocaine (ointment/patch—cut to fit, avoid mucosa)

   • Use & Time: Apply to perilesional skin up to 12 h/day; do not put directly on open ulcer unless directed.

   • Purpose: Local sensory dampening to reduce urges.

   • Mechanism: Sodium-channel blockade in skin nerves.

   • Side effects: Local irritation; systemic absorption is rare if used correctly. JAAD

8. Topical calcineurin inhibitor (tacrolimus 0.03–0.1% or pimecrolimus 1%) to periwound skin

   • Use & Time: Thin film 1–2×/day around the ulcer (not inside).

   • Purpose: Reduce inflammatory itch and eczematization at edges.

   • Mechanism: T-cell/cytokine down-regulation.

   • Side effects: Mild burning early on; avoid sunburn.

9. Botulinum toxin A (intradermal micro-dosing)

   • Use & Time: Tiny intradermal blebs around the itchy zone at 2–3 cm intervals; repeat every 3–4 months if effective.

   • Purpose: Reduce neuropathic itch and rubbing.

   • Mechanism: Inhibits acetylcholine release and pruritic neuropeptides.

   • Side effects: Local weakness if too deep; bruising. (Evidence limited but growing in neuropathic itch.)

10. Antibiotics (topical or oral) only if infected

• Use & Time: Topical mupirocin for intranasal Staph carriage or short oral courses (e.g., anti-staphylococcal) for cellulitis.

• Purpose: Treat secondary infection that worsens healing.

• Mechanism: Bacterial load reduction.

• Side effects: GI upset, resistance with overuse—avoid routine antibiotics unless infection is proven. JAAD

Other agents reported in single cases or small series include lamotrigine, venlafaxine, mirtazapine, or low-dose naltrexone. These are individualized and off-label.

Dietary molecular supplements

These are adjuncts for general wound health in otherwise healthy adults. Evidence in TTS specifically is limited; avoid megadoses.

1. Vitamin C (ascorbic acid)—500–1000 mg/day split; Function: collagen formation; Mechanism: cofactor for prolyl/lysyl hydroxylases.

2. Zinc—15–30 mg elemental/day short term; Function: DNA synthesis/repair; Mechanism: enzyme cofactor for tissue growth.

3. Vitamin D3—adjust to 1000–2000 IU/day if low; Function: immune modulation; Mechanism: VDR signaling influences repair.

4. Vitamin A—diet-first; if supplemented, low dose only under supervision; Function: epithelialization.

5. Arginine—3–6 g/day; Function: nitric-oxide mediated perfusion; Mechanism: substrate for collagen and angiogenesis.

6. Glutamine—5–10 g/day; Function: fuel for rapidly dividing cells; Mechanism: supports fibroblasts/immune cells.

7. Omega-3 (EPA/DHA)—1–2 g/day combined; Function: anti-inflammatory lipid mediators; Mechanism: resolvins/protectins.

8. Curcumin—500–1000 mg/day with food; Function: NF-κB modulation; Mechanism: antioxidant/anti-inflammatory.

9. Probiotics—standard daily dose; Function: gut–skin axis and immune tone; Mechanism: barrier/immune regulation.

10. Coenzyme Q10—100–200 mg/day; Function: mitochondrial support; Mechanism: antioxidant in oxidative healing stress.

Regenerative / stem-cell drugs

There are no approved stem-cell drugs for TTS, and immune boosters are not a treatment for this nerve-injury condition. Some wound-healing biologics are used off-label as adjuncts after picking stops and infection is controlled. Discuss risks, access, and cost with a specialist.

1. Becaplermin 0.01% (PDGF-BB) gel—apply a thin layer once daily to a clean, non-infected chronic ulcer; used for diabetic ulcers; evidence in TTS is anecdotal. Function/Mechanism: growth-factor support for granulation tissue.

2. Recombinant human EGF spray/gel—clinic-dependent availability; Function: epithelial proliferation and migration.

3. Topical platelet-rich plasma (PRP) gel—autologous biologic applied weekly; Function: concentrated growth factors to stimulate healing.

4. Hyaluronic-acid wound gel—keeps moist matrix and supports cell migration.

5. Collagen/ORC matrix dressings—bind excess proteases and provide a scaffold.

6. Polydeoxyribonucleotide (PDRN) (where available)—purine-mediated tissue repair; limited evidence.

These options are adjuncts, not core therapy, and should be used by experienced teams with clear goals and monitoring.

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Surgical options

Surgery is not first-line. It is considered after the patient maintains strict “no-touch” control and neuropathic symptoms are calmed; otherwise, new flaps/grafts will be damaged again.

1. Local soft-tissue reconstruction of the nasal ala

   • Procedure: Small rotational/advancement flaps to close the defect.

   • Why: Restore contour and cover exposed cartilage once the ulcer is quiet.

2. Composite auricular (ear) chondro-cutaneous graft

   • Procedure: A small piece of ear skin + cartilage grafted to the ala.

   • Why: Rebuild the delicate alar rim and prevent nasal valve collapse.

3. Paramedian forehead flap (for larger defects)

   • Procedure: Staged flap using forehead skin based on the supratrochlear artery.

   • Why: Provide robust, well-vascularized coverage for big losses.

4. Cartilage batten grafts / alar strut grafts

   • Procedure: Thin cartilage pieces (often from ear) support the nasal valve.

   • Why: Improve breathing and shape after tissue loss.

5. Neurosurgical treatment of a remediable cause

   • Procedure: Tumor resection or decompression if a mass is injuring the trigeminal system.

   • Why: Treat the root cause to prevent progression. (Rare and highly individualized.)

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Practical prevention

1. Treat neuropathic itch early (medicines + barriers).

2. Keep a protective dressing on during the day and a shield/gloves at night.

3. Moisturize surrounding skin and maintain room humidity.

4. Avoid nasal irritants: harsh cleansers, strong perfumes, dust/smoke.

5. Trim nails; avoid magnifying mirrors that trigger picking.

6. Build a habit-reversal routine (carry a fidget or stress ball).

7. Manage stress and sleep; use CBT or mindfulness if urges spike.

8. Control diabetes and other conditions that slow healing.

9. Seek early help for shingles affecting the face to reduce neuropathic sequelae.

10. Before any facial/sinus/dental surgery, discuss nerve-sparing techniques and post-op care.

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When to see a doctor (and when to go urgently)

• See a specialist soon if you have a new non-healing facial sore, numbness, or persistent itch/tingling after facial surgery, shingles, stroke, or trauma—especially on the side of the nose. DermNet®

• Urgent care now if the ulcer rapidly enlarges, you have fever, spreading redness, pulsing pain, worsening headache/neurologic symptoms, eye redness or pain, or significant nose bleeding.

• Ask for referral to dermatology (wound care), neurology/neurosurgery (underlying nerve injury), and facial plastics/ENT (reconstruction) as needed.

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Diet: what to eat and what to avoid

What to eat more of

• Protein with every meal (fish, eggs, lean meats, legumes, tofu): provides amino acids for collagen.

• Vitamin C–rich foods (citrus, guava, berries, capsicum): boosts collagen cross-linking.

• Zinc sources (seafood, pumpkin seeds, beans): supports DNA synthesis and repair.

• Vitamin A sources (eggs, liver in moderation, dark-green/orange vegetables): aids epithelial growth.

• Omega-3 fats (fatty fish, flax, chia, walnuts): calm inflammation.

• Plenty of water: maintains skin hydration and blood flow.

What to limit/avoid

• Smoking and vaping (impairs blood flow and oxygen delivery).

• Excess alcohol (inflammation and sleep disruption).

• Very spicy/hot foods right before bed if they trigger face touching.

• Ultra-processed, high-sugar foods (may worsen inflammation and glycemic control).

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Frequently asked questions

1. Is TTS contagious?
   No. It’s caused by nerve injury plus self-manipulation, not by a germ.

2. How is it different from skin cancer?
   TTS ulcers often sit exactly in a trigeminal territory, follow nerve injury, and are linked to rubbing. If there’s doubt, doctors biopsy to rule out cancer. Wiley Online Library

3. Why the nose (nasal ala)?
   The V2 (maxillary) branch supplies this area and dysaesthesia here strongly drives picking, so ulcers commonly form there. DermNet®

4. Will it heal on its own?
   Usually not, because picking continues unconsciously. Healing needs barriers and nerve-calming therapy together. JAAD

5. How long does healing take?
   Varies—weeks to months—depending on ulcer size, adherence to the no-touch plan, and control of neuropathic symptoms.

6. Do I need antibiotics?
   Only if there is a proven infection. Antibiotics do not treat the underlying nerve problem. JAAD

7. Is surgery required?
   Often no. Surgery is for tissue loss or collapsed nasal valve after behavior control.

8. Can it affect the eye?
   If the V1 branch is involved, corneal reflex may be reduced; eye surface can be at risk—get ophthalmic evaluation. PMC

9. Are there tests to prove trigeminal injury?
   Yes—blink reflex and SSEPs can objectively show pathway problems; MRI can find strokes or masses. PubMed

10. Why don’t I feel much pain?
    Because the nerve is damaged—numbness is part of the syndrome. The itch/tingle drives touching instead. EyeWiki

11. What if I truly can’t stop touching it?
    Behavioral therapies (HRT/CBT), night gloves, and rigid shields help. Your team can tailor a plan. PubMed

12. Which medicine works best?
    Responses vary. Carbamazepine has some of the strongest case-level evidence; gabapentinoids and TCAs/SNRIs help many. Combination with barrier protection works better than either alone. Mayo Clinic ProceedingsJAAD

13. Can children get TTS?
    It’s extremely rare at any age; most cases are adults after nerve injury. Wikipedia

14. Will it come back?
    It can if neuropathic symptoms flare and picking returns. Keeping up the no-touch routine and meds reduces relapse.

15. Does denial of picking mean I’m “faking” it?
    No. Many people are genuinely unaware of the behavior because it’s semi-automatic in response to dysaesthesia. JAAD

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The article is written by Team RxHarun and reviewed by the Rx Editorial Board Members

Last Updated: August 29, 2025.