Here are some examples that come to mind of causes of PN in which the damage can be reversed. PN due to nerve impingement, PN due to diabetes or prediabetes if sugar is kept under strict control, PN due to toxic exposure if the exposure to the toxin is eliminated or if it is from medical treatment such as for cancer after the medical treatment is concluded. In the above cases the PN may only reverse if a healthy environment for nerve health is maintained such as with diet and supplement use. It may not go away on its own. There are people here who have reversed their neuropathy caused by diabetes and also some who have had sucessful nerve impingement surgery. I personally have not had such luck with toxin exposure caused PN.