Transcutaneous electrical nerve stimulation (TENS) is a method of pain relief involving the use of a mild electrical current. A TENS machine is a small, battery-operated device that has leads connected to sticky pads called electrodes. You attach the pads directly to your skin.

Studies show that TENS can help relieve pain from diabetic nerve damage, most commonly in the hands and feet. Spinal cord injury pain. At least three studies on TENS and spinal cord injury pain have shown improvements in this kind of pain, which is hard to trea