As far as I know, neuro's don't always want/need to do surgery! But they certainly can help you with your sciatica!! It's certainly worth a shot, what do you got to lose right??
Injections, especially cortisone aren't good for you either!! My drs told me that cortisone should be outlawed, and that you should only have a few in your lifetime as it eats away your bones etc.!! There are other kinds too, but I'm not sure what they are!! I've had Kenalog injected in my hips and Botox in the lumbar area, but none helped!
It's amazing how much we have to go through, in our attempt at pain relief!! Good luck to you, and take care!!