I threw out my back and experienced sudden, excruciating pain across my entire lower back. It was very painful to stand up and to move my feet and I couldn’t lean or bend over at all. When this has happened to me in the past, I just wait through a very painful week, staying in bed and hoping the pain goes away. This time, I tried the FX635 laser. I went for 6 treatments in 3 days. After just the second day, I experienced a dramatic reduction in pain. I was able to walk slowly and much of my mobility was back. I am amazed the laser was so effective at eliminating my pain. It was so easy. I just let the laser do its work.