Mei Mei you are too funny. The Dr said he just flavored the shot with cortisone and then the nerve block medication that I can not for the life of me remember. I can look back at my notes, but its not a steroid so it doesn't make you nutty. He does not numb the area and it hurts when the needle goes in but there is an anesthetic in the injection as well so you are numb right after the treatment, I've heard some Dr's numb it first so you could most surely ask for it. Its very quick and the most annoying part is the "prep" or iodine/antiseptic they use to clean the area, got all in my hair yuck. He did a series of 4 blocks and then had a follow up with me. To be honest I probably only needed the first one, but I wanted all the relief I could get. The pain was minimized almost instantly and I'm still doing well with them. He only wants to hear from me if I'm in pain again, but it should last around a year if not forever (which does happen). Don't worry its not too bad and the numb head thing is great, your neck will be extra sore for a couple days, but its just an annoyance and can be helped with Tylenol/aleve or whatever you take.
Its something I think you should really consider, but let me see if I can figure out the medication they used.
Liz