The diaper traps and holds the strong chemicals in urine and feces against your baby's skin. The heat and moisture and chemicals create an inflammation and burning of the skin causing a rash with a lot of pain. There are things you can do to protect your baby's skin. If your baby has a bad diaper rash apply zinc oxide ointment to the area at each diaper change. This will protect the area from moisture and block the skin from further irritation.
Zinc oxide forms a barrier between the baby s skin and the ammonia in the urine.
Baby wipes can sometimes burn your baby s skin if they have a diaper rash. Use a wash cloth submersed in plain water to wash your baby. Or, if the feces is stuck to the skin and the rubbing hurts, you might need to give you baby a bath to wash it off. Children wearing disposable diapers get diaper rash more often than children wearing cotton diapers. Cotton diapers breath more than disposables.