I'd like to offer you my experience. My peripheral neuropathy started a few years ago – it was called idiopathic, meaning no known cause. My symptoms were reduced balance, instability standing or walking, leg weakness, pain in my feet, blotches on skin on my feet.
At some point, I stopped taking statin drugs, and the symptoms reduced dramatically. Then, I reduced, and almost stopped alcohol. Those symptoms reduced further. Alcohol consumption had also brought about leg cramps at night! Stopping alcohol has greatly reduced or eliminated the cramps. Finally, alcohol interferes with sleep (waking up at 3 or 4 and not able to get back to sleep) and it is fattening!
So, even though sobriety is no fun and doesn't cure PN, I believe sobriety does reduce the painful symptoms of PN and has other benefits.