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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Canker sores can be caused by acidic or spicy food, braces, or vitamin deficiencies. Alona Siniehina/Getty Images Canker sores are ...

The roof of the mouth, or the palate, is a sensitive place that can be easily disturbed. If you eat spicy foods or snore, the roof of your mouth can be aggravated. The roof of the mouth can also get ...

"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 ...

DEAR MAYO CLINIC: My husband suffers from canker sores. He seems to get a new one almost every week, and at different places in his mouth. These sores are very painful. We’ve tried everything to get ...

Canker sores are bacterial, non-contagious infections that occur on the gums, inner lips, inside the cheeks and sometimes on the tongue. They are usually red and round with a white center. Most canker ...

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 ...

Cold sores occur on the outside of the mouth and are caused by the herpes simplex virus. Canker sores are blisters inside the mouth that can occur due to injury, nutritional deficiencies, and ...

Canker sores are small, painful reddish lesions in the mouth that have a white or yellow center. Some causes of canker sores are spicy/acidic foods, vitamin deficiencies, braces, and stress. Most ...

Canker sores are frustrating and painful. If you find you’re getting canker sores often, the solution may be as simple as avoiding spicy foods or acidic fruits, which can irritate the mouth. Also, try ...