Classic cold sore: A tiny blister or cluster of blisters that is tingling or numb right at the edge of the lip is classic for cold sores. It will go away after a few days. If getting worse you will want to see a doctor.
Answered 9/19/2015
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3 doctors weighed in across 2 answers
3 doctors weighed in across 2 answers
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A doctor has provided 1 answer
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