A mouth ulcer is a painful sore that can form anywhere inside your mouth. It usually looks red, yellow or white, and you may have one or several at the same time. Know symptoms, treatment, prevention ...

Those tiny white spots inside your mouth might be small in size, but they deliver pain far beyond their dimensions. Canker sores affect nearly everyone at some point, making simple pleasures like ...

That painful sore that appeared inside your cheek makes eating spicy foods pure torture and talking uncomfortable. While you might dismiss it as just another annoying canker sore that will heal on its ...