I had botox injections (about 10) in Nov. They inject you on forhead, back of head, side of head, top of head, etc for the effected side. I have a friend who had this done and got migraines that effected both sides of the head and he had about 20 injections. It doesn't hurt the needles are small and don't go in deep. I was really freaked about it when I didn't need to be. However, it has done nothing to help my migraines or cluster headaches that I get. I know several people that have had sucess with it and would recomend you trying it at least a couple of times to see if it helps or not. They do it every 3-5 months.