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Word! Canker Sore

Canker Sore

Say: KAN-kur soar

This is a small mouth sore that's a big pain. Canker sores are open sores that have a white or yellowish coating and are usually about ΒΌ of an inch across. You might find them on the inside of your lips and cheeks, at the base of your gums, and on or under your tongue.

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