Spelling sciatica is one thing. Figuring out how to treat it is even harder. Sciatica, according to Web MD, is pain, tingling, or numbness produced by an irritation of the sciatic nerve, which runs from the lower back down each leg. It is usually caused by pressure from a ruptured or herniated disc, which pushes against the roots of the sciatic nerve. What to do about it? The Mayo Clinic suggests physical therapy–mainly exercises to strengthen the muscles that support the lower back, pain relievers, and, only as a last resort and only in some extreme cases, surgery. Bed rest, often prescribed for extreme and persistent sciatica, was recently shown to be no to be only slightly more helpful than watchful-waiting in the short term, and no more helpful than watchful waiting after 12 weeks.