I have a family with a lil one like this. It breaks my heart every time I change her diaper When I justbring it up with dcmom she jus says oh, she's going through another teething cycle. Whatever that means. Or she'll say, yeah, her urine is really acidic right now. I don't get that one either. Sooo, I just change her more often and always use zinc and vaseline. Funny though how it's always worse on Monday's when she's been home for 2 days.