Three times in the past year, I got a canker sore while traveling. The pattern makes it easy to diagnose: The cuisines of the ...

It takes about 2 weeks for canker sores to heal. During this time, the sores can be painful, although the first 3 to 4 days are usually the worst. Unless they are very large or deep, they usually heal ...

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 ...

A woman's overall intake of dietary antioxidants, including vitamin C, may play a role in causing recurring aphthous stomatitis (RAS), which is better known as canker sores, according to a study ...

It may take several years for the canker to girdle the branch. Once girdled, the branch dies and the needles turn brown and fall off. The fungus quickly grows throughout the dead branch, but rarely ...

If you've ever had a canker (say: KAN-kur) sore, you know that these small mouth sores can cause major pain. A canker sore can show up on the inside of your lip or cheek, under your tongue or at the ...