Roll your tongue around your mouth, and you might feel a sting from a new tender spot. A tiny, unwelcome crater of pain, a red circle of fire tucked against your cheek. It feels worse with every ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Like an annoying house pest, canker sores are a minor inconvenience that can really do a damper on your ...

Q: What causes canker sores? Why would I have a sudden outbreak of them in my mouth? A: There are several theories about what leads to canker sores, those painful ulcers that form inside the mouth, on ...

A canker sore—a painful white ulcer inside the mouth—might be brought on by stress. Or the wrong toothpaste. Or certain foods: tomatoes, peanuts, cinnamon. Or an iron deficiency. Or an allergy. Or a ...

Alas, those little (or uh, not so little) red bumps seem to pop up whenever they damn well please and wreak havoc on your life. A cold sore is an infection caused by the herpes simplex virus (HSV), ...

When Mari Henderson read a story about a woman the same age as her with tongue cancer, she asked for a biopsy. It helped her receive an early diagnosis. For several weeks, Mari Henderson felt a canker ...

Canker sores (aka aphthous ulcers) are one of life's little mysteries. Experts estimate that roughly one out of five people put up with these painful mouth lesions. Some suffer more than others: "My ...