It is labeled to help treat and prevent diaper rash and to protect chafed skin or minor skin irritation due to diaper rash. The label directions: change wet and soiled diapers promptly, cleanse the diaper area and allow it to dry, then apply the ointment liberally as often as necessary with each diaper change, especially at bedtime or when exposure to wet diapers may be prolonged. Keep it out of the eyes, and stop use and ask a doctor if the condition worsens or symptoms persist for more than 7 days or clear up and occur again within a few days.
See Zinc Oxide 20% Ointment