Hi Trish,
I had Cyberknife 11/08 at Stanford. Started having hemifacial spasms exactly 6 months out. I continue to have them, usually once a day, but sometimes more 4-5 maybe. They last about 10 seconds. I think they may be getting better. I go for my annual MRI soon and will write more at that time as I haven't been on the board for a while. Dr. Chang said it should pass in time. If you search for facial spasms you will find a few on these boards, but I do think overall it's not as common as some other side effects. When I had my initial MRI which found the AN, the radiolgist stated the facial nerve was inflamed and a facial neuroma should be investigated, but any other MD didn't think this was an issue. Likely just the AN aggrevating the facial nerve. I also had some episodes of vertigo, and will take the facial spasms anyday. I was on a 12 day course of decadron, high doses back in March for vertigo. I personally wouldn't take them for something that didn't hurt or interfere with my daily life, as they were harsh on me. That is a personal decision, though depending on how much these spasms bother you. I work in a health care environment, and while it can be somewhat embarassing, I just cover my face for a few minutes and say my facial nerve is a little angry. Most there know about my AN. Please PM me if I can be of further help. Hold the faith, that they will pass. Take care. Mona