TENS machines are a great way to treat a variety of musculoskeletal issues. TENS devices are a drug-free pain relief method that send small electrical currents and stimulating pulses to targeted areas of the body across the surface of the skin and along nerve strands. Prevent unwanted pain and discomfort with a portable TENS unit. The pulses will help prevent pain signals from reaching the brain while stimulating your body to produce more endorphins, the body’s natural painkillers. A TENS pain management machine can be used to treat moderate to chronic persistent pain as you easily adjust the intensity of the current.