I had a mild acne break-out last week. During the breakout, I formed a "bump" on the lower edge of my lip. It hurt like a pimple forming. But it did also start to tingle for a few days. It has now been a week and it's still just a bump on my lip---if I purse my lips it appears white. It has not crusted, blistered, etc. I am wondering if it is a cold sore.
Fri, 14 Mar 2014
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