Sir
It doesn't gives me a clear picture of what kind of ulcer it is. It is impossible for us to tell you of why is it like that. You mentioned that you quit but you never mentioned since how long had you been eating it. Kindly visit a dental surgeon to get a thorough check up. You would be advised the best treatment possible.
Answered2017-07-08 05:07:03
Let others know if this answer was helpful