Occasionally I get a sore on the roof of my mouth.  Then it goes away.  Same spot.  When I went to the dentist they said it was called rugae?  They were not concerned.  But since I was a heavy smoker for 25 years, I am worried.  Ive quit, its been 7-8 years.
Hello, Thank you for consulting with Chat Doctor. Actually Mugabe area is a constant landmark in the roof of mouth, it is not sore, and it does not go and comes. If you have some kind of soreness on the roof then it is not rule, it might be an authors ulcer. Better you should observe the condition and if you notice it in the future, then just start with a topical ointment named McCoppin. In smokers if soreness occur on the roof it is very painful and with burning sensation, but if you have quit the habit that it is not related to that. Hope it will help you.