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Diapering a Newborn: Dealing With Diaper Rash

By Jeannette Moninger
WebMD Feature

Is your baby bothered by diaper rash? There are lots of things you can do to prevent and treat this problem, says pediatrician Laura Jana, MD, co-author of Heading Home With Your Newborn: From Birth to Reality.

What causes diaper rash?

There are two main causes of diaper rash: contact irritation and yeast.

  1. Contact irritation occurs when a wet or soiled diaper is left on for too long. You may notice redness or small bumps on your baby’s bottom, genitals, and creases near her thighs. Your baby’s skin also may be irritated by a certain brand of disposable diapers or baby wipes, or by detergents or fabric softeners used on cloth diapers.
  2. Moisture that’s trapped in a soiled diaper is also a breeding ground for Candida albicans, a yeast that causes diaper rash. This rash often appears in skin creases, the thighs, and genitals (rarely on the buttocks).

Babies who are taking antibiotics (or whose breastfeeding moms are taking them) are more prone to this type of diaper rash because the medications kill good bacteria that keep yeast from growing. Plus, antibiotics can cause diarrhea, which irritates skin.

How can I prevent diaper rash?

Change your baby’s diaper as soon as you know it is wet or soiled. However, if your little one is napping and she doesn’t have sensitive skin that is prone to diaper rash, you can probably wait until she’s awake. That said, if you’re turning in for the night and you know that your baby has a soiled diaper, don’t let her sleep in it all night.

Some parents like to use baby powder to reduce moisture in the diaper area. Cornstarch may actually worsen a yeast diaper rash. If you want to use powder, make sure it doesn’t have talcum. Pour the powder carefully into your hands, away from your baby’s face, and then gently pat her bottom.

How do I get rid of my baby's diaper rash?

Frequent diaper changes are a must. At each changing, you should clean the diaper area with warm water and a soft washcloth or a baby wipe that doesn’t contain skin-irritating alcohol or fragrance.