Cause To better understand how to prevent this rash, it is important to be aware of the potential causes. Diaper rash is an acute inflammation of the skin in the diaper area caused by any number of potential factors. Moisture itself does not cause a diaper rash, but it promotes the growth of microorganisms, thereby increasing the chance for dermatitis. The time period that a wet diaper must stay in place before a problem develops is unknown. Skin irritation may occur when diapers rub against the skin, causing the skin to break down.
Broken skin is more susceptible to infection.
Frequent diaper changes both prevent and are a form of treatment for a diaper rash problem. Plastic pants should be avoided. Skin in the diaper area should be thoroughly cleansed with warm water and a mild soap. Allow the skin to completely dry before a clean diaper is applied. A heat lamp or hair dryer should NOT be used to further help dry the skin - the excessive drying of the skin can actually slow the healing of a diaper rash.