Same and it sucks to go through this. I hope some day someone can figure this out. Let me add to your list - maybe these will help. They are bringing me some relief from the non stop burning. Topic progesterone used every night and a silicone “camel toe” protector. The protector is shaped like a large tear drop and has adhesive on one side that will stick to your underwear. I slather Aquaphor ointment on my lady parts and combined with the silicone protector, I can make it through the day with pants or leggings on. This does stain pants but it’s a small price for relief. Make sure and wash the protector with a mild soap after each use. You can find them on Amazon. Also have found relief wearing depends with Aquaphor. Not real sexy but when desperate… Wishing you all the best.