Ultrasound uses high-frequency sound waves on soft tissue injuries. This form of therapy is administered by a staff member who will first apply ultrasound gel on your skin and then gently make small, slow circles on your skin at the location of the injury for 5-10 minutes. The sound vibrations create a heat response in tissues deep below the surface which help to break down calcium and hard tissue accumulations. Some patients don’t feel anything. Others feel a relaxing sensation below the surface of the skin.