A member asked:

I had had 2 mouth ulcers this week that are very painful. i get them weekly. could toothpaste be causing them ?

A doctor has provided 1 answer

It's possible.: Toothpaste can contain an ingredient SLS (Sodium Lauryl Sulfate). A sensitivity to that ingredient can cause mouth ulcers. Try using a toothpaste like Biotene which contains no SLS.

Answered 11/23/2016

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