Reviewed By Ray Spotts
You can feel it coming - that slight burning sensation in your mouth that means a canker sore is on its way. Canker sores, also called oral or mouth ulcers, are annoying and painful. There are few good treatments, so most people are left waiting them out. And as they occur three or four times per year, on average, and last up to a week, people can spend a month out of every year impacted.
