https://clinicaltrials.gov/ct2/show/study/NCT03094195#contacts
i think it's an older drug, but they're currently recruiting to test for PHN relief. They're focusing on Shingles, but I assume the efficacy would be the same for HSV. Gives me a little hope. Haven't had time to read through everything. Hurricane Irma is right around the corner....
Also, I read a few promising and not so promising studies on Botox for PHN. I'll leave links when I get the chance. I'm personally looking for urethral relief. Anyone here tried Botox?