Ultrasound treatment for chronic pain associated with tendonitis has been practiced for many years. With recent advancements in this area, technology has now provided us with an innovative, non-invasive ultrasound therapy for the treatment of a wide variety of localized pain. Chronic pain associated with tendinitis of the shoulder, elbow, knee, and foot, including heel spurs, can now be relieved in the vast majority of patients. Our low-energy ultrasound machine, Sonorex, has proven to be highly successful in providing this long-term relief.