Diaper Rash  (Irritant Diaper Dermatitis):
A parent's guide for infants and babies

Although disposable diapers may be superabsorbent and may not necessitate as frequent diaper changes as cloth diapers, changing any diaper often will help keep the area clean and dry. When cleaning the diaper area, try using diaper wipes that have no fragrances or extra additives or even use simply water and clean washcloths. Applying a barrier cream, such as one with zinc oxide in it, to the diaper area will help reduce friction and skin contact with urine and stool. If possible, allow your baby to have "naked time," where he or she is free from the diaper, to reduce the amount of time the skin is in contact with diapers.

The above self-care measures should always be followed to help prevent diaper rash from occurring.
See your baby's doctor for evaluation of diaper rash that does not improve with self-care measures, is getting worse, or involves the skin creases or any area that is not covered by the diaper.