A unique massage way to relieve sciatic pain in rear (glute). Doug Holland, LMT demonstrates how he uses his elbow to dig deep into the piriformis muscle to relieve sciatic pain. HollandReflexology.com
I suffer from fairly frequent sciatic pain. A woman in my local gym who was employed to help new joiners taught me a series of exercises to strengthen my core. The best I have found was The Plank. It works a treat.