I, too have had success with Red Light Therapy. This was not something available except from a professional - mine is a physical therapist/myokinestheologist. She refers to it as Class IV. I had to pay out of pocket as Medicare does not cover it, but it was a lifesaver before I found other protocols including prescription medications. It definitely gave me feeling back in my feet, and it helped with hand strength and finger stiffness. The effects on my hands didn't last long, as I also have Carpel Tunnel. But these days (years into treatment), most everything is under control (not gone) - except balance. Nothing seems to help with that.