Canker sores, also called aphthous ulcers, are small shallow ulcers that occur in the lining of your mouth. “They measure ...

A mouth ulcer is a small, painful lesion that forms inside the mouth. They can appear as round or oval sores with a white, yellow, or gray center and a red border. Common locations for mouth ...

Gloucester couple Gabrielle Bryan and Tyler Rees were told their then-six-day-old baby's blister was not a concern, but doctors found he had a heart murmur. A scan revealed Bertie had a ...

Also known as angular stomatitis and perlèche, this condition can cause swollen, red patches in the corners and on the outside of your lips. Unlike cold sores, which are caused by a type of ...