for me, nothing works. canker sores are completely random. i've done the vitamin c, the lysine, the non-SLS toothpaste, and it makes no fuggin difference.

Canker sores are vexing and common. The reason they occur isn’t clear, but your toothpaste could be a factor. An ingredient often used to make toothpaste foamy, sodium lauryl sulfate (SLS), has been ...

If you’ve been periodically rocking canker sores on your inner lips, then it might have to do with the kind of toothpaste you’re using. Yes, it seems unfair that you, being a responsible oral ...