
Could be the detergent you’re using and your city’s water. I’d legit start off by getting non scented detergent and a water filter for my shower. If that doesn’t work, go unscented on the soap and feminine wash you use for your entire body. Could be your tissue. If that all doesn’t work, get bloodwork and allergy test done. Ts sucks but hopefully it’s just your detergent and water 😭😭
I would see your gyno and express your concern for consistent yeast infections. There maybe be smth else, but also I agree you should run through the list. Better diet, more water, buy new undies that are cotton or a cotton based blend. (I find the lace ones are the worst bc it’s mainly plastic. Stick to sporty and basic styles). Change your soaps, don’t apply anything in the shower or out thr shower near your bikini line and inner thighs- water only see if it helps,
Possible sleep different— with or without panties, or even pants, or even a blanket right there due to warmth and moisture. I just do commando in large cotton/flannel pants so it’s breathable and have extra extra room. Clean any toys, possibly even stop w the toys of you do. If this only happens w sex then maybe provide your own condoms of a different brand it could be a reaction. So many things