Its kinda like a canker sore that is irritating, but you cant stop checking it out with your tongue.
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**Canker sores are small shallow ulcers that appear in the mouth and often make eating and talking uncomfortable. There are two types of canker sores:
Simple canker sores. These may appear three or four times a year and last up to a week. They typically occur in people between 10 and 20 years of age.