just sharing my experience but when i get a flare up I also get red and sore areas. i often get a patch that is red and sort of shiny right at the vestibule/entrance to my vagina. during a flare up my skin can also split here too. the rest of my obvious LS visible signs are all around my clitoris -fusing and whitening of skin. so i was also unsure if this was related when i was first diagnosed but i have discovered that LS is an ever changing and evolving situation and my red and sore patches respond to clob so i believe it is an LS flare up. i am no expert but i hope that helps?
because my nerves are so bad at moment ive had flare up nobody needs this but stress is the worst thing its horrible at the moment you cant see a dr face to face its really affected me and the l s hang in there i know its a nightmare at least try to speak to someone for some reassurance i know where your coming from x