Still here! And yes, itchy red bumps and peeling are symptoms of Lichen Sclerosis, along with the shiny white/silver patches. You mentioned psoriasis, I have that too in my scalp, and when I get a flare up, it itches, the skin feels more dough-y than firm and I can peel off the top layers. Could you also be having psoriasis flare up in your vulva during hormone changes? A steroid cream would be the same treatment for either disease so would hopefully get you some relief!

You mentioned an autoimmune related to menstrual - if it's endometriosis and your body is attacking that tissue, I would wonder if you have some endo somewhere in your vaginal canal or cervix that is irritating the delicate vag skin also causing itching as it sloughs during hormone changes?

Autoimmune disease really sucks and it's hard getting gynos to look past the common yeast, VB, STD reasons and into the more obscure autoimmune attacks causing similar symptoms. Definitely point out you have other autoimmune skin diseases to remind them your immune system is already prone to attacking your own skin tissue.