May have: A canker sore is more common inside the mouth and a herpes sore is more commonly found on or around the lips... Different treatment.. Usually antiviral drug that requires a prescription... See your dentist or physician for an evaluation and treatment.
Answered 9/28/2016
4.5k views
Mucous membrane: The picture shows that it is still confined to the mucous membrane and not skin. This is compatible with canker sore.
Answered 3/18/2015
4.5k views
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