What is the treatment for aphthous ulcers?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board
Educational purpose only • Exercise caution as content is pending human review
Article Review Status
Submitted
Under Review
Approved

Last updated: October 24, 2025View editorial policy

Personalize

Help us tailor your experience

Which best describes you? Your choice helps us use language that's most understandable for you.

Treatment of Aphthous Ulcers

Topical corticosteroids should be used as first-line treatment for aphthous ulcers, with betamethasone sodium phosphate 0.5 mg dissolved in 10 mL of water as a rinse-and-spit solution one to four times daily being the most effective option. 1

First-Line Treatments

  • Apply high-potency topical corticosteroids as the primary treatment for aphthous ulcers 1, 2
  • Options include:
    • Betamethasone sodium phosphate 0.5 mg dissolved in 10 mL of water as a 2-3 minute rinse-and-spit solution one to four times daily 1
    • Fluticasone propionate nasules diluted in 10 mL of water twice daily 1
    • Clobetasol 0.05% ointment mixed in 50% Orabase applied twice weekly to localized lesions on dried mucosa 1
    • Dexamethasone mouth rinse (0.1 mg/ml) for multiple lesions or difficult-to-reach ulcerations 2

Pain Management

  • Use bland non-alcoholic, sodium bicarbonate containing mouthwash four to six times daily, increasing frequency up to once per hour if needed 2
  • For moderate pain, consider topical NSAIDs (e.g., amlexanox 5% oral paste) 2
  • For more severe pain, follow the WHO pain management ladder with:
    • Anesthetic mouthwashes (viscous lidocaine 2%) 2
    • Coating agents 2, 1
    • Systemic analgesics as needed 2
  • Consider barrier preparations such as Gengigel mouth rinse/gel or Gelclair for pain control 1

Supportive Measures

  • Advise patients to avoid:
    • Hard, acidic, and salty foods 3
    • Toothpastes containing sodium lauryl sulfate 3
    • Alcohol and carbonated drinks 3
  • Recommend sugarless chewing gum or candy, salivary substitutes or sialogogues for patients with oral dryness 2

Second-Line Treatments

  • For recalcitrant ulcers, consider tacrolimus 0.1% ointment applied twice daily for 4 weeks 1
  • For ulcers that don't resolve with topical treatment, consider weekly intralesional triamcinolone (total dose 28 mg) in conjunction with topical clobetasol gel or ointment (0.05%) 2, 1

Systemic Therapy for Severe Cases

  • For highly symptomatic or recurrent ulcers, consider systemic corticosteroids:
    • High-dose pulse 30-60 mg or 1 mg/kg oral prednisone/prednisolone for 1 week followed by dose tapering over the second week 2, 1
  • For severe refractory cases, consider:
    • Colchicine for recurrent aphthous stomatitis 4
    • Pentoxifylline 3
    • Thalidomide (most effective but limited by adverse effects) 4

Special Considerations

  • Treat concurrent candidal infection with nystatin oral suspension or miconazole oral gel 1
  • For patients with HIV infection, the same diagnostic and treatment approach can be used, but be alert for atypical presentations 5
  • Investigate for underlying causes in recurrent aphthous stomatitis (RAS), including:
    • Gastrointestinal diseases (celiac disease, inflammatory bowel diseases) 4
    • Nutritional deficiencies (iron, folates) 4
    • Immune disorders (HIV infection, neutropenia) 4
    • Behçet's disease 4

Treatment Algorithm

  1. Start with topical corticosteroids as first-line treatment 1, 2
  2. Provide appropriate pain management based on severity 2
  3. If no improvement after 1-2 weeks, escalate to second-line treatments 1
  4. For severe or refractory cases, consider systemic therapy 2, 1, 4
  5. Investigate and address any underlying causes for recurrent cases 4

References

Guideline

Treatment Options for Oral Aphthous Ulcers

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

The treatment of chronic recurrent oral aphthous ulcers.

Deutsches Arzteblatt international, 2014

Research

[Aphthous ulcers and oral ulcerations].

Presse medicale (Paris, France : 1983), 2016

Research

Recurrent aphthous ulcers in association with HIV infection. Diagnosis and treatment.

Oral surgery, oral medicine, and oral pathology, 1992

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

Have a follow-up question?

Our Medical A.I. is used by practicing medical doctors at top research institutions around the world. Ask any follow up question and get world-class guideline-backed answers instantly.