Here’s a useful article on sciatica exercises that points out the aims of different stretches that give sciatica relief. Instructions for an example stretch is also included, which is why I thought it worthy of posting. It’s a simple piriformis stretch which you can do at home without any need for special equipment.
Here’s a quote taken from the article:-
“One simple exercise to stretch the piriformis and get some relief from the pain can be mentioned here. Lie flat on your back on the floor. Now hold your right knee and pull it towards your left shoulder.”
http://ezinearticles.com/?Sciatic-Stretches—Treating-Sciatica-Through-Natural-Means&id=1384950

