Gabapentin has never demonstrated any convincing ability to modify peripheral neuropathy; almost nothing has. There are a couple drugs in the pipeline that promise to do this but time will tell. There is some evidence worthy of the name that the prescription drug Qutenza may not only ameliorate pain but also favorably modify the course of the disease through some nerve regeneration. This is the high potency prescription-only capsaicin patch that must be applied by a physician. It is used primarily for diabetic foot neuropathy but may have favorable systemic effects, as well.