Mouth ulcer. big n long time to heal.. it comes with a few little ones?

If you want help....: It could be from a number of causes. There are many different type of mouth ulcers. If you see a dentist he\she will know exactly what it is and how best to treat it or make if feel better\heal sooner.

See an oral surgeon: You should see an oral surgeon for an evaluation. Mouth ulcers are usually benign but unfortunately they can be more serious too. So go get an evaluation & maybe a biopsy.