I have used the Pulse Laser Relief for a wide range of ailments with very good results. I have fibromyalgia and it has helped with most issues relating to this disease. I have purchased a second unit for my elderly parents who now use it with confidence for arthritic pain, muscles aches, strains and even wound healing. (They are both in their late 80's and have no problem with the technology as it is easy to use). Service and delivery excellent.