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Skin Care and Diseases

Swollen lip out of nowhere

03/15/2008

Question:

Just the other night I noticed a zit like bump on my lip and yesterday it started to swell up a little bit, but today it has swollen about half of my upper lip. Do you have any idea what causes this?

Answer:

Swollen lip could be a sign of an allergic reaction (angioedema) similar to hives. In that situation though, usually the swelling is rather more uniform instead of being localized to half of the upper lip. A previously unnoticed insect bite could do the same thing. A visit to the doctor will be helpful.

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Response by:

Elma D Baron, MD Elma D Baron, MD
Associate Professor of Dermatology
Director, Skin Study Center
School of Medicine
Case Western Reserve University