Recently the day after my period my vagina got really itchy, and sore. I thought maybe I was just imagining it. Now it’s been a couple days and I’m worried it could be something serious. It’s not itchy anymore just sore and maybe kinda swollen. I have only had sex with one person ever and we always use condoms so there is no chance of it being an STD. I have even bought soap today that works to help keep a good Ph down there in hopes that would help. Any advice on what it could be? And how to fix it?