Canker sores are painful ulcers that occur in the mouth, including on gums. Here's a look at how to deal with them.

People living with HIV face unique oral health challenges that require special attention and care. The virus's impact on the ...

What causes canker sores? The cause of canker sores remains unclear, the Mayo Clinic says, but researchers suspect a combination of factors contributes to outbreaks. Possible triggers include: ...

We saw die-back in trees coming out of winter. In some cases, it is environmental stress from drought stress and winter temperature extremes. It also may be a canker disease.

Mouth ulcers, which include canker sores, are small sores that develop within the mouth. There are no definite causes of mouth ulcers, but some injuries, allergies, or sensitivities may trigger them.

Needless to say, the islanders are swapping spit more than college kids in Cancun on spring break, so a cold sore outbreak wasn’t just likely—it was kind of inevitable.

When the seventh season of Love Island USA premiered, an X user had a prophecy: “The entire Love Island franchise can be brought down by a single cold sore.” Dramatic? Yes. A joke? Probably. Were they ...

Cold sores are common, and they can sometimes appear under the nose. Learn about the symptoms, causes, treatment, and prevention of cold sores under the nose.