Mouth ulcers

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Canker sore (aphthous ulcer)

Lichen planus on the oral mucosa

Mouth sores

Oral thrush

Oral ulcer; Stomatitis - ulcerative; Ulcer - mouth

The goal of treatment is relief of symptoms. The cause, if known, should be treated. Gentle, thorough oral hygiene may relieve some of the symptoms. Topical (rubbed on) antihistamines, antacids, corticosteroids, or other soothing preparations may be recommended for applying on top of the ulcer. Avoid hot or spicy foods, which often increase the pain of mouth ulcers.

The outcome varies depending on the cause of the ulcer. Many mouth ulcers are benign and heal without specific treatment. Rarely, chronic mouth ulcers can develop into oral cancer.

• Cellulitis of the mouth, from secondary bacterial infection of ulcers
• Dental infections (tooth abscesses)
• Oral cancer
• Spread of contagious disorders to other people

Call for an appointment with your health care provider if your mouth ulcers persist for longer than 3 weeks. Call for an appointment with your health care provider if mouth ulcers return frequently, or if new symptoms develop.

Review Date: 01/18/2007
Reviewed By: Benjamin W. Van Voorhees, MD, MPH, Assistant Professor of Medicine and Pediatrics, The University of Chicago, Chicago, IL. Review provided by VeriMed Healthcare Network.