Have it checked out soon. I have osteoradionecrosis in my right mandible related to radiation in 2005. The early indicators that something was not right were trismus, pain in the jaw, and a white "knot" behind my back right molar. I had 60 HBO treatments last year and good results with "stabilization." However, I developed fistulas with drainage and am now having 30 additional HBO dives. Also on oral antibiotics. My dentist was able to take photos with a tiny(obviously ;)) camera on one of his dental instruments to show the bone of my jaw coming through my gums.

SUEZ: I would encourage Ron to see an Oral Surgeon for an evaluation as HBO may be an option.