How do i rid my mouth of small mouth ulcers?

Determine Cause: Mouth ulcers can be caused by many different things. Sometimes it is not as simple as canker sores. I would suggest you see a dermatologist who specializes in oral diseases to have a complete workup. Oral ulcers can be caused by things like lichen planus, pemphigus vulgaris, herpes stomatitis and many others.

Laser: Your dentist can use laser to treat these ulcers they will heal quicker and give you instant pain relief.