I'll be starting the exact same treatment program in about a week at UPMC. If your mother is being treated there let me know in a PM and we can get together for coffe in Shadyside. I have been through this once before at UPMC so i can give her a few pointers.
I can tell you that the cyberknif is not near as bad as the IMRT. She will only recieve 5 treatments over 10 days and the after effects were not as bad for me as the IMRT was. I got a mild case af acne from the
Erbitux but I have heard of others who have had severe reactions. Charm is a frequent poster here and he had a very bad reaction to it, so yo have to watch it closely