I've read a couple of posts elsewhere on HU that mentioned something for neuropathic pain and it persuaded me to give it a go. I took 1 600mg capsule of alpha-lipoic acid amazon.co.uk/d/Alpha-Lipoic... twice a day (morning and evening) for four weeks.
To be honest I didn't think it had done anything, so I stopped taking them. Over the next two weeks my pain got gradually worse. It took another week of bad pain before I thought of the fact that I'd stopped taking the alpha lipoic acid -so I started taking it again.
That was a week ago, and my neuropathic pain has decreased substantially over that week.
Now this is the sort of stuff I hate - anectodes about chemicals that help. There is some evidence that it helps with neuropathic pain. But that was in diabetics after intravenous administration, so not totally relevant.
However, if, like me, your neuropathy is bad enough to sometimes require opioids to quell the pain then it might be worth giving alpha lipoic acid a try.