NetWellness is a global, community service providing quality, unbiased health information from our partner university faculty. NetWellness is commercial-free and does not accept advertising.
Monday, May 4, 2015
Skin Care and Diseases
Swollen lip out of nowhere
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?
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.
Elma D Baron, MD
Associate Professor of Dermatology
Director, Skin Study Center
School of Medicine
Case Western Reserve University