A member asked:

What to do if i have this thing on the corner of my mouth and when i eat or yawn it tears open because i open my mouth too far. is it a cold sore?

A doctor has provided 1 answer
Dr. Heidi Fowler answered

Specializes in Psychiatry

Not necessarily: Cold sores are painful liquid filled blisters that can occur on the lips, roof of the mouth or the gums which are usually caused by the herpes simplex virus (HSV-1). Tingling &/or pain can herald the oncoming of cold sore 1 to 2 days prior to eruption. Your doctor can do a test to find out if you have the Herpes virus.

Answered 7/3/2014

3.9k views

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