Ultrasound treatment uses a machine to send sound waves into the tissue being treated. Depending on the settings used, the sound waves cause enough vibration with resulting friction to produce heat in the area. At lower settings it can be used for other reasons, such a micro-massage, without heating up the area. Ultrasound can be used for a variety of conditions like muscle spasms or increased muscle tone, hematomas (bruises), swelling or edema, and areas of irritation or pain. Your physical therapist can determine whether ultrasound is appropriate for your condition. Ultrasound is usually an adjunct to other treatment received. For additional information about ultrasound please contact CORE Services, Inc. at 314-647-4880.