T.E.N.S - Transcutaneous Electric Nerve Stimulators
These small device have been used with chronic pain sufferers form many years. They offer an alternative to traditional medication methods of relieving pain. The small electricall impulses can be controlled to deliver stimulation to the nerves "blocking" the sensation of pain.
These devices can also aid in pain reduction for mother during child birth.
Medical advise should always be sought to establish the cause of pain.