My dentist thinks I may have an abscessed tooth because their is a cyst (pus filled) where I had a tooth extracted. It doesn t hurt, not sensitive to cold - x-ray is inconclusive, the tooth is not loose, I can eat withpout pain. My guess is - I got a piece of food caught where in that pocket 2 weeks ago. I swished with hydrogen peroxide and poked and pfrobed with my own dental instruments. In fact, if I hadn t poked - I don t think it would have gotten infected. The cyst has only been there about a week. My question is I have heart burn. I ve had it long before the cyst appeared. Could my heartburn be related to possible abscess and if I had an abscess for awhile - wouldn t I have known it?