Cuts under vaginal opening.

I’ve had a yeast infection last month. Now nearly one wee ago i was wearing really thigh thongs (stupid of me) while on my 6 hours shift.(bartender) came home, got changed and noticed a lot of discharge on my panties REALLY A LOT, went in the shower and didnt think much of it. woke up the morning after really itchy and few days later i noticed these cuts. now the itchiness has stopped but the cuts wont heal and actively bleed. im on the pill as well. what could it be?