Instant pain relief Drug-free pain relief Uses microcurrent therapy Aids self-healing Enhances circulation Targets the source of your pain Easy to wear PainMaster can be used to help the systems of arthritis, fibromyalgia, sciatica, lower and upper back pain, migraine headaches, runners knee, carpal tunnel syndrome, muscle spasm, tendonitis, acute pain from injury, Sports injury, bursitis, swelling and inflammation, hip pain, leg cramps and more. You are able to wear more than one PainMaster at a time. PainMaster Patches (1 Set) Battery Device User Manual Multiple Treatment Areas PainMaster provides you with a cordless pain-relief solution that is FDA approved, which you means you can use it in multiple places around your body. A non-invasive and drug-free remedy, this pain relief for men has zero side effects. It works with the body\'s natural energy lev