Uy, PUPPP is really frustrating kaya naintindihan ko! The sweat-triggered cycle you're experiencing ay common talaga, pero since you're only at 30 weeks, best to mention it to your OB pa rin para ma-confirm it's PUPPP and hindi something else, they might suggest alternative treatments or ways to keep the area dry (like moisture-wicking clothes, staying cool) na mas sustainable para sa remaining weeks mo. Calmoseptine is working naman, which is good, so you're on the right track; just make sure your doctor knows ang pattern mo so they can give you options if the ointment alone isn't quite cutting it.