The main problem with the treatments some doctors prescribe for peripheral neuropathy is that they never go after the root of the problem, but focus on the symptoms – in your case; numbness, tingling, burning and/or a feeling of weakness. And when these treatments wear off (which they do), you'll often find they only cover up your problem for a short time and do nothing to fix what's causing your neuropathy in the first place.
Treating only the symptoms of neuropathy for an extended periond of time, can result in a condition that has progressed too far, to the point other root cause treatments can no longer be of help.
Off-Label Drug Use
Some doctors give their patients anti-seizure meds like Neurontin for their neuropathy. Anti-seizure meds like Neurontin, Klonopin, and Topamax were not meant to cure neuropathy! (I guess it doesn’t matter that Pfizer, the maker of Neurontin, was fined $430 million dollars in 2004 for recommending that Neurontin be used “off label,” or for purposes other than its intended use).