This sounds like something I did 3 yrs ago only it was called interferential therapy. I went to a physical therapist 2-3 xs per week for about 3 months. It worked so well that I purchased a machine for home use. It actually turned out to be a little bigger than my palm. It was $400 but very worth it. In the first year of treatment, my feet improved 50-60%. This past winter I did another new treatment called an aqua roll. It’s a new treatment for neuropathy. I also had laser treatments. My neuropathy is on the balls and toes of both feet. These treatments improved my feet another 25 %. I wanted to continue with the treatments but my insurance wouldn’t approve any more.