Canker Sores Guide: Causes, Treatment, and Prevention
What are canker sores?
Canker sores are small ulcers that form on the inner side of the lips and cheeks. Canker sores can be quite painful. Eating and even talking might also become difficult. While in majority of cases canker sores disappear after a few days, in few cases it might persists for weeks. You need help in case of painful large canker sores or if they persist for long.
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