Patients are randomized to receive either standardized point acupuncture or alternate point acupuncture treatment twice weekly for the first 6 weeks, then once weekly for the next 8 weeks, plus either oral amitriptyline or placebo daily for the entire 14 weeks. Acupuncture points are located on the lower leg. Patients are evaluated at weeks 6 and 14 and are asked to keep a daily pain diary.