I am now 8 weeks out of radiation treatment (33 sessions) following removal of the tumor from my tongue. About 10 days ago, I noticed the soreness when I touched my scalp at the crown of my head. Today, the soreness has spread forward to my forehead and backward to the base of my skull. It seems to be increasing, modestly but noticeably. Of course, I'm going to discuss it with my surgeon and my radiation oncologist, but I would like to know if anyone has experienced it, what is the cause, and how long it may last, etc.