Oh no, that sounds really uncomfortable especially at 37 weeks when everything down there is already so sensitive! Someone in my mum group mentioned that skin in the third trimester reacts much more strongly to waxing because pregnancy hormones make everything more inflamed and prone to those pustules, so what you're experiencing is unfortunately not that rare, though it doesn't make it any less miserable. Honestly, a light antiseptic lotion (something gentle like Savlon or a diluted tea tree option) applied carefully can help calm the irritation and reduce the risk of the pus spots getting worse, but I'd be cautious about putting anything too strong on broken skin so close to delivery. What worked for some mums I know didn't work for others, a few said the pustules cleared in about 3 to 5 days with gentle cleansing and loose cotton underwear, but one mum I know had hers linger closer to a week and a half because she kept irritating the area. Do please check with your gynae or a doctor before applying anything, especially at 37 weeks, better to get proper advice since you're so close to your due date and infection is the last thing you want to deal with right now.