What can I do for mouth ulcer relief?

Mouth ulcer pain rel. Depending on the condition, either traumatic, autoimmune or viral, there are treatments out there that can shorten the duration, or temporarily relive pain. For trauma a med like kenalog (triamcinolone) in orabase should healing time to about! /2. This is also true with the use of an antiviral, a magic mouthwash can be mixed by a pharmacist for excellent pain relief.
See your doctor. See your doctor. He/she will listen to you, examine you and possibly do some tests. He/she will probably prescribe medication for pain, physical therapy for exercises and stretching and possibly a referral for surgical intervention.