I am confused as to what this rash is. I only had one partner throughout my whole life and this is the first I have had this rash. I have had irritation in my vagina before and itchy due to bad underwear, tight clothing and the use of laundry detergent I dried shaved my vagina ( only with water, didn't add any shaving cream), the same day i had my period and wore a pad and then I wore a panty liner on the last day of my period and woke up to this. The rash is painful while the urine touches it. It's also painful because the pubic hair is very spiky. Also, there is Nitchinessss. Any idea what this could be?