Usually, you should change your baby's diaper when he eats. If your baby's diaper is wet or soiled between feedings, change it as soon as possible.
Gently wash your baby's buttocks and genital area with a diaper wipe or a soft cloth and lukewarm water.
You may use a mild soap, but avoid unneeded chemicals. Wipe from the front to the back.
Wash your hands before and after changing your baby's diaper.