Wendy - HBOT is a good treatment for anybody thats had high doses of radiation....Radiation can destroy many of the very small blood vessels that help you heal.HBOT will help you regrow that blood supply and help you heal.I've had 90 HBOT dives total. Thirty in 2004 and sixty in 2007....the maximum is 60 in a row Monday-Friday.It's VERY expensive and boring...you need great health insurance and patience.