The greasier the better, says Charles Shubin, a Baltimore pediatrician, who claims he used Crisco to moisturize his own kids' skin when they were younger. The idea is to seal in the water that's been absorbed into the skin during the bath. Don't overdress your baby. Dress her in clothing made of natural fabrics such as cotton, which are less likely to irritate skin than synthetics and will allow the skin to breathe, so she'll sweat less. Try to keep your baby from scratching the rash by keeping her nails cut short and putting her to bed with cotton mittens or socks on her hands.
Scratching can further irritate the skin and lead to infection.
Since she may be trying to get relief by rubbing her face against her crib sheet at night, be sure to use the softest sheet possible so there won't be so much friction. If the scratching continues to be a problem and seems to be preventing your baby from sleeping, ask your doctor if you can give your baby a dose of the antihistamine Benadryl before bed. Not only will the Benadryl cut down on the itchy feeling, it can also make your baby drowsy and better able to fall sleep. See your pediatrician. If you continue breastfeeding, consider staying away from these foods yourself, since you could be passing the proteins on to your baby through your breast milk .