Aww sis, inner thigh chafing is super common especially pag mainit at maraming sweating, a few of us went through the same thing postpartum or even during pregnancy kaya don't worry! Best thing is to keep the area dry, wear breathable underwear, and avoid tight clothes, pero para sa ointment talaga, mas safe na magtanong muna sa doctor or midwife mo para sure kung ano ang best for you lalo na ngayon kang new mom pa lang. They can check if it's just chafing or something else at magbigay ng proper treatment na safe especially if breastfeeding ka pa, kaya don't hesitate to message your OB or PNP okay?