No one on the web, doctor or otherwise, can diagnose what you have and you need to go see a qualified oral surgeon or ENT as soon as possible to have them find out what this is. Anything which has not resolved or healed in two weeks is suspect. I do not wish to alarm you, but the most common manifestation of oral cancers is in smokers, and appears as a red (erythroplakia) or white color (leukoplakia) change in the tissues, some times red and white mixed together. As a smoker this is not something that you should delay in having checked out. They can do a simple, inexpensive, painless biopsy and let you know in less than a week what's what. If reading all the information in this site and the stories on this message board hasn