kathy,
When I was hit with Sciatica I tried many different treatments, and eventually went for Acupuncture. Like you, IT MADE IT WORSE! MUCH MUCH WORSE! After years of having that problem on & off, I learned that the best thing for it was, believe it or not, Valium. There is no better muscle relaxant. When I would feel it coming on, a valium before bed & again in the Am usually kept it from flaring up. Denise's suggestions are also terrific - that pillow between the knees while on your side. Also try some pelvic tilt exercises - and stretching. Relax those back muscles.

I have been free of that pain for several years now - AHHHHHHH!!!!!!

Good Luck - Feel better soon