A member asked:

I just popped a white pimple like bump on my upper lip, not the lip line, actual top lip. didn't hurt, and i know it isn't a cold sore. or is it?

A doctor has provided 1 answer
Dr. Heidi Fowler answered

Specializes in Psychiatry

Cold sore: 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.

Answered 10/20/2015

2.1k views

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