Tongue Ulcers (Aphthous Stomatitis): Treatment, Healing, and When to See a Doctor

Minor aphthous ulcers (≤1 cm, 70–85%) heal in 7–10 days without scarring. Major (>1 cm) and herpetiform (multiple 1–3 mm) take longer and may scar.

Self-Care (First-Line)

• Protective coatings: Orabase®, Zilactin®, milk of magnesia (swish/spit) – barrier against mechanical/chemical irritation.
• Topical anesthetics: Benzocaine 20%, lidocaine 2% – temporary relief.
• Antimicrobial rinses: Chlorhexidine 0.12% (Rx), hydrogen peroxide 1:1 dilution – reduce secondary infection.
• Saltwater/baking soda rinses: ½ tsp salt or 1 tsp baking soda in 8 oz warm water – soothing, cleansing.
• Avoid triggers: Spicy, acidic, salty, abrasive, hot foods; SLS-containing toothpaste.
• NSAIDs/acetaminophen for pain.

Medical Treatments (Recurrent/Severe)

• Topical corticosteroids: Triamcinolone 0.1% in Orabase, fluocinonide 0.05% gel, clobetasol 0.05% – apply 2–4× daily. Mainstay.
• Systemic (refractory): Prednisone burst, colchicine, dapsone, thalidomide (specialist only).
• Biologics: Anti-TNF (adalimumab) for Behçet's-associated ulcers.

Nutritional Considerations

Screen for deficiencies: B12, folate, iron, zinc, vitamin D. Supplement if low. Lysine evidence weak.

Red Flags (Referral)

• Ulcer >2 weeks without improvement
• Recurrent (>3–4×/yr) or continuously present
• Large (>1 cm), deep, or unusual appearance
• Fever, dysphagia, weight loss, genital/ocular lesions
• Immunosuppression

Differential: Behçet's, IBD, celiac, HIV, malignancy (SCC), PFAPA, cyclic neutropenia.