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Word! Canker Sore

Word! Canker Sore

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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 1/4 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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