I'm sorry that you've been invited to join our little group of neuropathy sufferers against your own will, it's not a lot of fun to deal with. I've been dealing with idiopathic poly neuropathy in my feet for 10 years now, and have tried a few different treatments/supplements.
I have tried taking magnesium a few years ago, with zero noticeable differences. My doctor recommended adding alpha lipoic acid to my list of other supplements that I already take, and this has had some positive results. I'm taking 3600mg of gabapentin a day to dull the pain in my feet, and it seems like the ALA has taken some of the edge off of the pain. I haven't had one of my really bad days since I started taking it about 4 months ago.
I hope this helps.