If he has a particularly nasty diaper rash that doesn't soothe after you apply ointment, then he may be afflicted by a yeast infection diaper rash. (pregnancy-info.net)
Keeping your baby dry not only establishes an all night sleeper, it protects them from getting harmful infections like those nasty diaper rashes that come from baby staying in a wet diaper too long. (strollerlab.net)
I never would have thought of giving my baby naked playtime if it hadn't been for a nasty diaper rash in his first month. (candokiddo.com)