Hi, I am new to this forum, so trying search engine and it is confusing. My brother underwent surgery, chemo, and radiation for an oral cancer in the roof of his mouth. All teeth removed. This happened starting last April. His radiation treatments really crushed him. He is going to physio therapist to try and get more movement back in his jaw. His biggest problem right now are headaches that do not respond to any treatments to alleviate the pain. Can someone more experienced with this forum guide me to any pre-existing knowledge that may be helpful to him? Thanks!