question: After I went to the dentist 4 years ago I was in excruciating pain and thought it was my wisdom teeth but after a week  it finally eased up and now my lower left side on my gums will swell then it will turn in to a hard bump and then it will go away this happens about once a month maybe longer at times. I am pretty sure the dentist scratched my gums which is how this all starte.  So what am iI dealing with?