Cold sores are caused by the herpes simplex virus (HSV) which is often transmitted from person to person during kissing. Once it has infected the body, the virus lies dormant, generally being kept ...

To resolve a cold sore as quickly as possible, you should begin treating it as soon as you feel tingling on or around your lips. Most cold sores should not require visiting a doctor, as they will ...

Experts explain what they do, and don’t, recommend. Ask Well Experts explain what they do, and don’t, recommend. Credit...Joyce Lee for The New York Times Supported by By Erica Sweeney Q: I ...

Cold sores, also known as fever blisters, are a common viral infection that many Brits experience. These small, fluid-filled blisters appear on and around the lips, often grouped together in patches.