Canker sores are painful sores that usually appear inside your mouth, at the base of your gums. While these are not contagious, they are quite uncomfortable. Just about anything can trigger an episode ...

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But sometimes, they say, ulcers ― small, usually circular sores that form ... and forefinger on the inside and outside of the gum, moving slowly around your mouth to feel for anything unusual.

“It causes blisters on the hands and the feet and inside the mouth and down the throat. Small babies can have them on their bottom,” Izaddoost said. Izaddoost said children with ...

Canker sores are small, painful lesions inside the mouth that appear as reddish sores with a white or yellow center, which make it difficult to eat or talk. They are generally split into two ...