Image: Cold Sore - MSD Manual Consumer Version

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Cold Sore

m1700358-secondary-herpes-simplex-science-photo-library-high

Cold Sore

This is a close-up of a cold sore (also known as a fever blister) of the lower lip.

SCIENCE SOURCE/SCIENCE PHOTO LIBRARY

In these topics

Lip Sores, Lip Inflammation, and Other Changes

IN THIS TOPIC