Question What is the difference between a canker sore and a cold sore? Answer Canker sores and cold sores are common but distinct oral conditions that often get confused. Understanding the difference ...

Canker sores and cold sores are both non-threatening blisters in and around the mouth, but there are a few key differences between the two.

Canker sores tend to be on the mild side in 85% of people who develop them. However, you'll want to avoid eating these foods if you have a painful canker sore.

Canker sores are usually smaller and have particular characteristics, while oral cancer is more varied and may bleed. Here are more ways to tell them apart.

Additionally, canker sores only appear on the inside of the mouth (sometimes on the throat, too), while cold sores usually appear on a person's lip.

Fake meat, canker sores and dreaming in color: The week in Well+Being Are burgers made from plants really better for you than real beef burgers? Our Eating Lab columnist, Anahad O’Connor, has ...

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 ...

Eating one kiwi cures my canker sores as fast as the prescription steroid cream, and the kiwi doesn't come with warnings about the danger of putting it in your mouth. It has helped a few of my friends ...

Learn how you can tell if your mouth ulcer (canker sore) is healing and how long it will take before it goes away.

Many readers report that taking L-lysine tablets or vitamin B-12 can prevent canker sores, while others have had success taking Prelief or eating canned green beans, banana or kiwi fruit.

For 6 months, Mari Henderson had a canker sore that didn't go away. She learned had stage 1 cancer after reading an article about woman with tongue cancer.

Blisters on the lip include cold sores and canker sores. Treatment depends on the cause, and some people find relief in using home remedies.