The First And Only Laser For Chronic Lower Back Pain Treatment FDA has approved this laser for the treatment of chronic lower back pain. This was accomplished in a clinical experiment that was double-blind and placebo-controlled. (After a follow-up assessment after two months) study participants reported a 58% reduction in pain. In the experiment, it was determined that the FX635 was... https://urgentway.com/services/lower-back-pain-treatment/