Sciatica is a pain in the butt, literally.  The buttocks is one of the places where sciatic pain starts, but sciatic pain can run from the low back, buttocks and hips into the legs and even feet.  It usually happens on one side or the other but seldom on both sides. The most common sciatica causes come from low back damage and herniated lumbar disk.  The best way to help with this pain is to rest your back and take natural supplements with magnesium and other herbs that help settle the sciatic nerve pain.  Other causes are rare and require medical treatment whereas the common causes only require the above natural treatment with bed rest.