What is the treatment for oral sores in adults?

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Treatment of Oral Sores in Adults

The treatment of oral sores in adults should follow a comprehensive approach including topical medications, oral rinses, and pain management, with specific interventions determined by the underlying cause of the sores. 1

General Treatment Approach

Initial Management

  • Apply white soft paraffin ointment to the lips every 2 hours throughout the acute illness to protect and moisturize 1
  • Clean the mouth daily with warm saline mouthwashes or a gentle oral sponge to reduce bacterial load and promote healing 1
  • Use a mucoprotectant mouthwash three times daily (e.g., Gelclair) to protect ulcerated mucosal surfaces 1

Pain Management

  • Use an anti-inflammatory oral rinse or spray containing benzydamine hydrochloride every 3 hours, particularly before eating, to reduce pain and inflammation 1
  • For inadequate pain control, consider topical anesthetic preparations such as viscous lidocaine 2% (15 mL per application) 1
  • For severe oral discomfort, cocaine mouthwashes 2%-5% can be used three times daily 1

Infection Control

  • Use an antiseptic oral rinse twice daily to reduce bacterial colonization - options include:
    • 1.5% hydrogen peroxide mouthwash (10 mL twice daily) 1
    • 0.2% chlorhexidine digluconate mouthwash (10 mL twice daily), which can be diluted by up to 50% to reduce soreness 1
  • Take oral and lip swabs regularly if bacterial or candidal secondary infection is suspected 1

Specific Treatments Based on Cause

For Fungal Infections (e.g., Candidiasis, Angular Cheilitis)

  • Treat with nystatin oral suspension 100,000 units four times daily for 1 week 1, 2
  • Alternative: miconazole oral gel 5-10 mL held in the mouth after food four times daily for 1 week 1, 2

For Viral Infections (e.g., Herpes Labialis/Cold Sores)

  • Valacyclovir is indicated for treatment of cold sores (herpes labialis) 3
  • Treatment should be initiated at the earliest symptoms and prior to any signs of a cold sore for maximum effectiveness 3
  • Standard dosing: Valacyclovir 2 grams twice daily on Day 1 followed by 1 gram twice daily on Day 2 3

For Inflammatory Conditions

  • Consider using a topical corticosteroid four times daily (e.g., betamethasone sodium phosphate 0.5 mg in 10 mL water as a rinse-and-spit preparation) 1
  • For more potent treatment, clobetasol propionate 0.05% mixed in equal amounts with Orabase can be applied directly to the sulci, labial or buccal mucosae daily during the acute phase 1

For Refractory Cases

  • For ulcers unresponsive to conventional therapy, 3% citric acid applied topically three times daily may be considered as an alternative treatment 4
  • Be aware that some oral ulcerations may be drug-induced and might resolve with discontinuation of the causative medication 5

Special Considerations

Stevens-Johnson Syndrome/Toxic Epidermal Necrolysis

  • Daily oral review is necessary during the acute illness 1
  • Follow comprehensive management protocol including all measures listed above 1
  • Consider specialized care in severe cases with extensive mucosal involvement 1

Monitoring and Follow-up

  • Evaluate treatment response within 2 weeks 2
  • If no improvement is seen, reevaluate for correct diagnosis or consider alternative treatments 2
  • Be vigilant for signs of secondary infection or complications 1

Common Pitfalls to Avoid

  • Failing to identify drug-induced oral ulcerations, particularly in patients on multiple medications 5
  • Delaying treatment for herpes labialis beyond the prodromal stage, which significantly reduces efficacy 3, 6
  • Using alcohol-containing mouthwashes which can cause additional pain and irritation 1
  • Overlooking the need for adequate pain management, which can impact nutrition and hydration 1

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Guideline

Treatment of Angular Cheilitis

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

Research

[Drug-induced oral ulcerations].

Annales de medecine interne, 2000

Research

Patterns of disease and treatment of cold sores.

The Journal of dermatological treatment, 2013

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.

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