The TENS unit from Walgreens is a device that provides pain relief by using transcutaneous nerve stimulation through use of an electrical current. The TENS unit can be used in addition to pain medications or as an alternative, explains Healthline and Walgreens.com. The unit is safe, effective and FDA cleared.
The TENS treatment is non-invasive as a low-voltage electrical current is delivered through electrodes placed on the skin. These units offer various levels of intensity to treat pain, to stimulate the release of endorphins and to enhance blood circulation, states Walgreens.com. A TENS treatment may last from minutes to hours.