I have a cut on the inside of my mouth, just under my front bottom teeth, i quite often now and then get cuts around this areai, very painful and some?

See A Dentist: Without knowing more about your diet and/or habits, your history of having recurring injuries to your mouth would strongly suggest that you should see a dentist to determine why you are experiencing recurring injuries in the same area. Your dentist should be able to help you identify possible causes and solution(s).

Examination: Lesion should be examined by Dentist before it heals so that practitioner can determine type of lesion, cause, and appropriate treatment.