They still do this now, except now it's called, "neuromodulation." Now they use an implanted device called an "Interstim device" to generate constant neuromodulation. There is an externally worn version of it called a "TENS unit." I have one. I can see how electric current could fix MS, since electric stimulation has an affect on the nervous system and therefore, has an effect on neurological disease.My grandmother had MS that started in what must have been the early 1930s. They didn't have much medication options back then. Her legs were numb and she could not walk. She was a proud woman and didn't want anyone to know she was in a wheel chair. She was determined to overcome it. She was able to get some kind of experimental treatment in Boston. They attached electrodes to her legs. I kid you not. She went regularly for treatment. She told a story of how she was at an appointment and she was able to stand and walk. She looked out the window of the doctor's office and there was a phone booth on the street corner. She told the doctor she wanted to go down to the phone and call her husband, my grandfather. Supposedly the doctor let her do this or went down with her and she called him and told him she had walked! When I was born 30 years later, she was active. She could walk and play golf. She said her legs felt like pins and needles at all times but she could use them. I don't know why that electrode treatment never got further study. My grandmother went on to live until age 103!