The body responds better to laser's that can change their pulses per second compared to a continuous rate laser. The pains that come from pressure placed upon the sciatic nerve from either muscle or joint inflammation or a vertebral disc that is out of position can be mild or intense. If you are having a bad period of sciatica be sure to stick to your normal routine with the exception of avoiding excessive bending over and heavy lifting. Surgery is another option for the more extreme incidents. Nerve Defend can help you a lot and protect you from chronic nerve pain.