The man getting the surgery had been sidelined for 14 months and was real eager to get back to his job. I can echo that sentiment. As much as I hate working, once I had my procedure, I couldn't wait to return to work.
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.