I have PN from my quinolone reaction. It has bee over a year and a half in it still progresses so I believe it must have an autoimmune characteristic. On the glutathione I would suggest avoiding it and also mega supplementation especially ALA which causes its own problems over time. I have tried all of the above and more and wish I had done nothing and just let my body do its work to heal with maybe some very basic supplementation. There is not majic answer, we have been screwed over by our own system and doctors who practice lazy medicine. Warn your loved ones and try to endure and time may bless you with some healing.