Thanks for your query.
It appears as a case of some vaginal infection
which is localized to labia ,redness
.pain & itching all point to infection.it be viral,bacterial or yeast or fungal. So consult some gynec & start treatment ,you will recover with in few days.
‘Hope I have answered your query, I will be available to answer your follow up queries, “Wish you Good Health and trouble free speedy recovery”