Hi Gary,

I had radiation on both sides of the neck/jaw and from the front on the neck. For a while, you could see where the radiated section was as it was a nicely defined reactangle. In time it started to grow back but at a slower rate than the areas which did not receive radiation. Don't know if the HBO treatments helped any on the hair regrowth, but just like everything else about the treatment and recovery, everyone reacts differently. Best advise I can give is give it some time and in a year see where you are.

Jim