Is there a cure for aphthous stomatitis (canker sore)?

Canker sores usually heal on their own within a week or two. Over-the-counter topical anesthetics and antimicrobial mouthwashes may provide temporary relief. Stay away from hot, spicy or acidic foods that can irritate the sore. Antibiotics from your dentist and some oral bandages can reduce secondary infection.

Aphthous stomatitis, also known as canker sores or aphthous ulcers, usually goes away on its own within a week or two. If you know what's causing the sores you can take steps to prevent them. Canker sores are often caused by an injury to the mouth, such as biting your cheek or irritation from a denture, damaged tooth, or orthodontic braces. Some people have food sensitivities or allergies that can cause canker sores. Common culprits include chocolate, coffee, strawberries, and highly acidic foods such as lemons or pineapple. In some cases, a diet low in vitamin B12, folate (folic acid), zinc, or iron can cause canker sores. Frequent or large canker sores may be a sign of a more serious problem, such as celiac disease, Crohn's disease, or an autoimmune disease.

There is no cure for aphthous stomatitis (canker sore). Some people seem to be more prone to them, such as people with a family history of canker sores and women. Reducing the number of outbreaks should be the goal of most people with this condition. Reduction techniques include decreasing stress in your life, eliminating foods that aggravate the sores, and taking a daily multiple vitamin that contains vitamin B, zinc, and folate.