Dani,
I had Hyberbaric Oxygen treatment, 30 of them, to start the process of getting implants in the lower half of my mouth. My doctors told me the same thing that Gary just posted, that there is no proof that HBO "helps" cancer grow. What it did do is make my mouth feel a whole lot better and helped the lymphedema that I still have left on my jaw. If your mother has an infection in her bone I would push her strongly in the direction of Hyperbaric treatment. Maybe showing her doctor some facts on it would help???
Good luck with the decision.
Minnie

SCC Left Mandible. Jaw replaced with bone from leg. Neck disection, 37 radiation treatments. Recurrence 8-28-07, stage 2, tongue. One third of tongue removed 10-4-07. 5-23-08 chemo started for tumor behind swallowing passage, Our good friend and much loved OCF member Minnie has been lost to the disease (RIP 10-29-08). We will all miss her greatly.