Rash on vulva

so two days ago i felt itchy down there but i was at work so i couldn’t really do anything and i just thought it was because i had shaved and the hair is still growing back so i thought that’s why i was itchy. When i got home i went to shower and saw that i had a rash in the center of my vulva. it wasn’t bumpy but irritated and red splotches. last night i started having some burning in my vagina and i’m not sure what could be the cause. i was checked last year for stds and tested positive for chlamydia and had it treated. i was with my current bf at the time and i was the one who gave it to him (had it before we got together) but i’ve been clean after that. i’m loyal to my bf and i know he’s loyal to me for sure so it’s not an std. has anyone had anything similar happen to them? i will be going to the dr. but i just got new insurance so i’m trying to find one.