Comment on YSK that SLS, an ingredient added to most commercial toothpastes, causes canker sores
obinice@lemmy.world 1 year agoYou’re thinking of cold sores, I think OP just means mouth ulcers. I’m not sure what the word canker means, could be an American term.
NumbersCanBeFun@kbin.social 1 year ago
canker
/kăng′kər/
noun
Ulceration of the mouth and lips.