Welcome to Neuro Talk. I myself didn't have the facet blocks. I do know they are temporary, even the surgery for it. I would seek another opinion on the whole thing before submitting to it. Just personal opinion. I had ketamine infusions for cervial spine, and that helped for about 3 months. Question everything with your doctor. Ask all quesitons, including asking him about the permanence of this proceedure. Don't hesitate to google up the information. Much is on line about that block and others that may be offered to you. I don't blame you for not wanting more surgery. None of us do, thats for sure.
Keep in touch and we will be here for you, no matter what you decide to do. It is a hard decision, especially when no guarantees can be offered. I wish you all the best. ginnie