I didn't do the treatment as I did hear some negative things (though you would want to do your own research on that as there are positive things too). The cost was also a concern so instead I bought a TENS unit and have been using that on my feet for some months. Along with the Acetyl-L-Carnitine and Alpha Lipoic Acid recommended by my neurologist I had several months of much-reduced symptoms. My Aug/Sept was busy and stressful and I've had other health issues resulting in more tingling and discomfort. Working on settling things out but I believe I can get back to the more stable place over time. I have recently purchased a red light therapy unit and just started using it. Has that worked for your husband? Does he use a flat wrap or a boot? I haven't seen a boot that I liked--purchased one but it had thick plastic over the lights which made my feet hotter and I had more discomfort so I retured it. I've been just using the flat one on the bottom of my feet--don't know if it's working or not.