I remember the first time my baby had a rash—angry red splotches appeared across her perfect porcelain cheeks and I FREAKED OUT. When I hauled us to the pediatrician, I was quickly greeted with a “newborn acne” diagnosis as well as a reassuring, “We get a lot of rash inquiries each day.” I’m not surprised. It can be really troubling when a rash pops up and you don’t know what the hell it is, if it’s contagious, or if it needs medical attention. Rashes on infants usually fall into one of three c