I have idiopathic small fiber neuropathy. I tried PRP a couple of years ago and no blue/purple toes or tingling or electric sensations since then. Symptoms are just starting to return, but they didn’t say it would be a “forever“ fix. It’s spendy, but they think it’s great that I got a couple of years of relief. I also might have Raynaud’s and Hashimoto. I’ve been pre-diabetic for 10+ years.