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Seborrheic dermatitis (seb-uh-REE-ick dur-muh-TIE-tis) occurs in areas of the body where there are a lot of oil-producing glands such as the scalp, nose and back. In infants, seborrheic dermatitis usually appears on the scalp and is commonly known as “cradle cap.” In older children and adults, seborrheic dermatitis on the scalp is typically called dandruff.
The exact cause of seborrheic dermatitis is unknown, but it is believed to be a combination of factors including genes, yeast that lives naturally on the skin, stress, chemical irritants and/or dry, cold weather that causes the skin to overproduce oil. In infants, researchers believe seborrheic dermatitis is triggered in part by hormones from the mother.
Unlike other forms of eczema, seborrheic dermatitis is not the result of an allergy.
Sometimes seborrheic dermatitis appears on the infant’s face, especially around the eyes and nose area. It can also appear in the diaper area and in the folds of babies’ skin.
Seborrheic dermatitis typically goes away at ages 6 to 12 months.
In infants and children, seborrheic dermatitis can appear on the scalp or body as:
For the most part, babies are unbothered by the symptoms of seborrheic dermatitis. For more severe cases, it is important to be on the lookout for any signs of infection such as skin that feels hot, weeps fluid or smells bad. Contact your health care provider if you suspect your child has an infection.
For cradle cap in infants, the following home remedy usually works:
If this doesn’t work or if your child is older, your health care provider can recommend an OTC dandruff shampoo with ketoconazole, selenium sulfide, coal tar or zinc pyrithione as the active ingredient. Take extra care to keep these shampoos out of your child’s eyes.
In more severe cases of seborrheic dermatitis in older children, your health care provider may prescribe a topical steroid or stronger antifungal medication.