Ultrasound is a therapeutic treatment method utilizing soundwaves to treat pain, inflammation, and muscle spasms. It's a method of stimulating tissue beneath the skin's surface using soundwaves. The ultrasonic waves that pass through the skin cause a vibration of the local tissues. The vibration can cause a deep heating locally, though usally no sensation of heat will be felt by the patient.
The soundwaves stimulate your joints, ligaments, tendons, muscles, and other tissues providing targeted pain relief.