Irritation or compression of the sciatica nerve triggers sciatica pain. The sciatica nerve is the longest single nerve of the body that starts from the lower back and runs through the buttock and the entire lower limb. Injury to the hip or the lower back and certain diseases and conditions that affect the lower back and hip cause sciatica pain. People suffering from sciatica experience a sharp, almost electric shock like pain, which usually starts in the lower back and radiates to the legs and feet. The pain increases with movement. One of the best natural remedies for sciatica is yoga. Here are 10 yoga poses that can provide relief from sciatica.