A member asked:

What could a blister on my mouth be? (from a boy excessively biting my lip)

A doctor has provided 1 answer

Sure: Sounds like you've answered your own question. If he did that it could be from direct trauma or possibly a new herpes simplex lesion has developed. If you've had cold sores in the past this might be a new one.

Answered 4/21/2013

5.2k views

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Related Questions

A member asked:

I am getting white patches inside my mouth from lip biting?

A doctor has provided 1 answer