Angelia,

The tooth that had the root canel and the extraction are next to each other, so it is a bit hard to tell for sure which is the problem, but I belive it is the one that was extracted and is not healing. My husband's oncologist had recommended hyperbaric treatments when they thought he was going to have two root canals and no extraction - they later decided to extract the one tooth. Are you on antiobiotics? Good luch with the root canal.