A TENS machine, or trancutaneous electrical nerve stimulator machine, blocks pain receptors in the skin. This technology is used to reduce muscle pain and may inhibit pain responses for chronic muscle pain sufferers. Side effects of TENS machines are generally mild, even with extended use. If any effects are especially bothersome, a physician can evaluate the continued use of the device.
Muscle Pain and Twitching
The constant pulsing of electrical stimulation from the TENS machine can cause pain and muscle twitching. The Merck Manual Home Edition recommends that the unit be used from 20 minutes to several hours as long as the patient is comfortable and the muscles do not become sore. Muscle twitching occurs from overstimulation.
Skin Reddening and Soreness
TENS units are recommended for round-the-clock use but must be periodically removed to assess their effects on the tissues of the skin. Regularly replacing the adhesive pads on the skin can cause soreness. Cleansing the skin beneath the pad with alcohol and applying gel will increase the conductivity of the electrodes and may protect the skin from irritation.
Warnings
Drugs.com notes that use of a TENS unit on pregnant women is not advised, as the effects of the vibrating impulse on the unborn fetus are unknown. Units should be removed at least once per day if they are used for extended periods. In addition, the pads should be lifted and the skin checked to avoid rashes and irritation. The Merck Manual Home Edition says that TENS machines should not be used on the skin near the eyes, temples or across the head.
Member Comments