itching then burning and now hurts when i walk in my vagina

First i had itchyness and swelling in my vagina and i used gold bond and it helped relieve pain but not fix anything.  Then the swelling went away and just started to itch and then the swelling came back with this burning feeling.  WHen i use the cream now it only burns and also when i pee it burns! When i walk it feels like theres glass scraping me and hurts sooo bad.  I cant sleep at night and icing doesnt help! what can i do and what do you think it is im really scared.

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