A member asked:

Half my upper lip randomly became swollen and numb with a bump on it and lasted for about 40 mins before going down. does not look like a cold sore.

A doctor has provided 1 answer
Dr. Leslie Leighton answered

Specializes in Internal Medicine

Unsure: Could be allergic reaction. If it recurs would see your doctor for evaluation.

Answered 4/1/2019

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