does anyone know what this is??!! photos included

this morning i noticed this rather large and sore cut near my vagina. does anyone know what it is?

image

looks like just a cut

any idea what the cause of it could be? i don’t remember cutting myself at all

the skin is soo sensitive there it could have been from your panties rubbing it. or from dryness. do you have any other symptoms? are you sexually active?