While cold sores are not dangerous, they can be irritating — especially if you suffer from frequent outbreaks. Although they most commonly appear around the lips and mouth, cold sores can spread to ...

Canker sores often seem to pop up out of nowhere and, once you have them, they’re often painfully hard to ignore — especially when you try to eat or even talk. So what, exactly, are canker sores? They ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." “When dead cells aren't removed from the surface of your skin,” says Dr. Yadav, “they can get trapped ...