Well, you have come to the
Multiple Sclerosis forum which is not so much involved with peripheral
neuropathy as it is central neuropathy. So I would recommend that you post this question over on the Neurology forum.
There are medications approved in the use of peripheral neuropathy. Lyrica was just approved for this use in diabetic neuropathy, but it is used in other forms, too. There are other meds used, but I am not an expert in them.
Good luck to you relieving your misery!