I'm sorry but I have to disagree with Kimberly. Right now, surgery is NOT indicated. I doubt a surgeon would agree to operate on you UNLESS you showed more symptoms than you're showing right now.
Naturally if you showed bowel & bladder dysfunction like your doctor said, they WOULD have you in the operating room. But believe it or not, I've had sciatica for the last 26 years -- and I haven't had surgery!! I almost wish I had, but it wouldn't guarantee they could ease the pain, so why bother?
They're probably right that therapy right now is the best. I hope it DOES work for you, and eases the sciatica. Many times it does -- it's just AS effective as surgery! Best of luck and I'll be anxious to hear how the therapy works out for you. Take care & God bless. Hugs, Lee