Cold sores, or fever blisters, are groups of small blisters on the lip and around the mouth. The skin around the blisters is often red, swollen, and sore. Photo credit: Courtesy of the CDC Cold ...

Researchers have found that the herpes virus, which causes cold sores, increases Alzheimer’s risk by as much as 80% by ...

A new study has found the herpes simplex virus, which causes cold sores, may be linked to the development of Alzheimer’s ...

A mysterious bump near your lips can be unsettling. Is it a harmless pimple or something more serious like a cold sore? Distinguishing between the two is crucial for effective treatment and ...

Since all cold sores are caused by the herpes virus, any treatment that directly targets the virus is automatically one of ...

View the slideshow below for photos of canker sores in the throat ... Learn more about how long canker sores last. Both canker sores and cold sores are small, painful lesions that cause a burning ...

That immediately drew my attention to a familiar feeling — a tingling sensation at the corner of my mouth. I’ve had cold sores for as long as I can remember and know about a prescription drug that ...

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 ...