In my sleep I bit the inside of my lower lip right side. Lip was swollen and after 3 weeks I went to the dentist. Dentist One performed oral surgery with a laser to remove. Healed rapidly and now I have a lump on one side where the incision was. Small raise above skin but deeper when you feel outside and inside mouth together.Dr. Two oral surgeon does not know what it is but believes it is not cancer. No pain and I do not want more surgery. Skin dr says no sign of cancer but did not test tissue.