I’ve been using red light therapy on my feet and lower legs. My feet have been ice cold for a while with no change doubling up on socks and house shoes. After a few days, I’ve used the red light for twice a day. My feet were warmer. I stopped using it for a few days and the coldness came back. I started using it again and my feet are warm. I hope eventually it take care of the nerve sensations. It’s a red light pad that I wrap around my feet.