Best thing for neuropathy?

Find the cause. The best treatment for neuropathy is to treat the cause (for diabetic neuropathy: control blood sugars, lose weight. For thyroid-related neuropathy, optimize thyroid medication dose. For B12 deficiency, replace lost vitamin b12. For toxic neuropathy, drink no alcohol; etc). Prescription medications for neuropathy do not cure the condition or heal the nerves, they only help alleviate nerve pain.
Give me the reason. Best treatment for neuropathy will stem out of its cause. If diabetic, adequate diabetes control is paramount. Other meds may be lyrica, (pregabalin) cymbalta, neurontin, tricyclics. If slipped lumbar disc, treat that first, either conservatively or surgically. B12 deficiency will need to be replenished and so on.