I have post herpetic neuralgia. I have been in chronic since September 2017. I have tried everything I can and more than I can afford. Too shorten the list diet, vitamins cream, oils, cbd, treatments including surgery. Next month I am going to visit surgeon for another consultation for a neurectomy (many nerves damaged). It's a life changer. From the shingles and it's miserable pain. I'm still trying.