You can tell if you have a canker sore by how it looks and how painful it is. Call your doctor or dentist if you have: Unusually large sores Sores that spread Sores that last 2 weeks or longer Extreme pain despite avoiding trigger foods and taking over-the-counter pain medication ...
Debacterol is a topical pharmaceutical that is used in the treatment of ulcerating oral mucosal lesions (canker sores). It has also been successfully used in clinical settings for gingival and medium to severe periodontitis.