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), ...

Add Yahoo as a preferred source to see more of our stories on Google. What starts as a subtle tingle or burning in your mouth can signal something more painful on the horizon: a pesky canker sore. For ...

Canker sores, also called aphthous ulcers, are small, shallow lesions that develop on the soft tissues in your mouth or at the base of your gums. Unlike cold sores, canker sores don't occur on the ...

Matt Fuchs lives in Maryland and writes about health, science, and technology. Matt Fuchs lives in Maryland and writes about health, science, and technology. Roll your tongue around your mouth, and ...

Canker sores are painful ulcers that form inside your mouth. The sores can affect daily habits like eating and drinking. Experts recommend key practices like regular teeth brushing and flossing to ...

Three times in the past year, I got a canker sore while traveling. The pattern makes it easy to diagnose: The cuisines of the countries I had traveled to were heavy in tomato sauce, cheese, yogurt, ...

Canker sores, though often overlooked, are a common oral health issue that can cause considerable discomfort. These small, painful ulcers typically form inside the mouth and can interfere with daily ...

Those tiny white spots inside your mouth might be small in size, but they deliver pain far beyond their dimensions. Canker sores affect nearly everyone at some point, making simple pleasures like ...

"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 ...

Canker sores are vexing and common. The reason they occur isn’t clear, but your toothpaste could be a factor. An ingredient often used to make toothpaste foamy, sodium lauryl sulfate (SLS), has been ...