Power supply device to which the self-adhesive electrodes are connected
It can be combined with injections at the trigger points with very good results, but on its own as a treatment it can provide significant relief, especially in cases of muscle spasm when there is fear of injection. It is also applied in tension headache and in cases of neuropathic pain. It consists of a small power supply device, which is connected by wires to four small stickers, which are applied to the skin of the affected area of the body and has the ability to adjust the frequency of the current. The mechanism by which TENS works is to stimulate the nerves of the affected area, which in turn stop the painful stimulus preventing it from reaching the brain and being experienced by the patient as pain. (irritation of the Ab sensory fibres which close the "pain gate" at the level of the posterior horns of the Spinal Cord blocking it from reaching the cortex of the brain and the perception of pain).