Chafing?

Sarah • 20 - Australian - Queer - Taken 2/1/19

So this is a bit embarrassing but for a few days my 'downstairs' has been a bit itchy and sore and now it feels like my labia have been grazed or chafed or something and when I walk it feels like my panties are chafing, has anyone had anything similar or have any tips on how to get it to hurt and rub less?!

(FYI: I know it's NOT an STI because I'm a virgin and I haven't fooled around with anyone in a while either)