Has this ever happened to you? You’re enjoying a meal and then all of the sudden as you’re chewing you bite down on the inside of your lip or cheek. Within hours, you have a canker sore. Most of the time, this type of mouth sore will heal on its own in a few days. But there are other types that can be persistent. Read on to find out about the different kinds of mouth sores and what can be done to prevent and treat them.

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