The ActiPatch is a cutaneous device which is CE marked approved for relief of pain and has FDA clearance as an over the counter device for the adjunctive treatment of osteoarthritis of the knee and plantar fasciitis. It is taped over the affected area and stimulation at a high frequency is reported to alleviate pain with no sensation. By randomising patients between application of an active device or a dummy device and assessment of disability and pain scores at four weeks the efficacy or otherwise can be established. Chronic low back pain is a major health problem and if effective this has major economic implications as the device is cheap and safe.