@joyatbells - Lyderm gel (comes in paste form too, but gel is better applied in the mouth) is a steroid and may have side effects too because my doctor said it should not be taken for more than seven to ten days.

Someone in one of these threads said she used kid’s toothpaste and it helped with the burning when brushing her teeth so I got Crest kid’s toothpaste while I waited for my appointment with the specialist, and that did make brushing teeth more comfortable.