Therapeutic ultrasound as atreatment modality that has been used by therapists over the last 50 years to treat soft tissue injuries. Ultrasound is applied using a wand or probe put in direct contact with the skin. Ultrasound gel is used on the surface of the head to reduce friction and improve the transmission of the ultrasonic waves. The sound waves that pass through the skin cause a vibration of the local tissues which can cause a local heating effect though usually no heat will be felt by the patient. Ultrasound has been shown to cause increased tissue relaxation, local blood flow, and scar tissue breakdown. The increase in local blood flow can help reduce local swelling, chronic inflammation, and may promote bone fracture healing. The intensity of the ultrasound can be adjusted depending on the desired effect.
Electrotherapy, also known as TENS, is a drug-free, non-invasive therapy designed to reduce and relieve numbness in the arms, legs and foot by applying electrical nerve stimulation to the surface of the skin near the site of the pain.