Has any one had a temporal nerve block?

has any had a temporal nerve block done and has it worked? not sure i want to have this done. But am tired of the pain. Don't know what else to do. Not sure how this works or what they do. They just mentioned it. They are also wanting to change my seizure meds again to tegratol. The only bad thing about that is the constant blood draws to make sure my tegratol levels are in normal ranges. But the meds that I am on now i have maxed out. I just don't know what else to do. TO day i am 8 months since my AVM removal and I have had pain in my head and ears ever since. Has any one elese had these issues.