Any doctor or dentist who says that he is not concerned because of your lack of tobacco and alcohol use is not up to speed on what is happening across the US. The fastest growing group of oral cancer patients is young people who have never used tobacco or alcohol to excess. This guy is behind the knowledge curve. How many people have you read about just here on the board that had oral cancer and did not smoke? Tons!! It is being talked about in every major treating institution in the US, and they are trying to find the causes. Many fingers are pointing strongly at HPV, but that is an academic point if you have s lesion in your mouth that has been there 14 days and not resolved. A good doctor should do one of two things at this 14 day point. Biopsy the lesion or refer you further up the food chain of doctors to someone else. My personal choice is an oral medicine specialist, who works in conjunction with an oral pathologist. Unfortunately they are usually mainly located at dental schools in major metropolitan areas. But at least he has done the prudent thing