Rash or

So I literally like have this rash at the end of my vagina like on both sides at the same spot it’s not a bump or anything it’s like jus a red part on my skin no puss comes from it it doesn’t burn when I pee it’s just very irritated and itchy and red when I put a&d ointment it seems to be better but then it goes back like if I have my panties on too long any tips ?