Cradle cap is seborrheic dermatitis on the scalp. Babies can also get seborrheic dermatitis on the face and in the diaper (nappy) area. It is not an itchy rash, so doesn't causes the baby distress.
The information on this page is summarised in the list below - you can go directly to a question or just keep reading for an overview of seborrheic dermatitis in infants.
It is a type of dermatitis called seborrheic dermatitis which occurs in areas rich in sebaceous glands, like the face, scald and diaper (nappy) region.
It is common in infants, usually appearing between 2 and 10 weeks of age. It usually resolves by 1 year. It does not generally occur in children older than 1 year of age.
It is a greasy layer of scales that are yellow-pinkish in color that cover the baby's scalp or part of it. The picture on the right is characteristic.
Seborrheic dermatitis on the scalp doesn't usually cause any distress so many parents don't do anything about it. It will clear with time.
If you want to remove it, the scaly layer needs to be softened so it gently comes off with gentle wiping. Do not scrape the scales off. You can soften the scales by applying olive oil. Apply and leave for 15 mins and then gently wash your baby's hair with shampoo and then gently dry the head wiping the scales away gently.
Occasionally a shampoo containing sulphur and salicylic acid (such as Sebulex or Egozite Cradle Cap) will be required or an antifungal shampoo, like Ketaconazole.
Seborrheic dermatitis causes scales that can crust and often have a greasy yellowish appearance on a red background. It is not as itchy as eczema.
The picture on the right shows the waxy, slightly yellow scaling seen in seborrheic dermatitis on a baby's face. Unlike infected eczema, the rash of seborrheic dermatitis doesn't weep.
1% hydrocortisone cream can be used daily for seborrheic dermatitis in the diaper (nappy) area or for seborrheic dermatitis on the face. Sometimes, when the diaper (nappy) area is affected, treatment with an antifungal agent is also necessary.
Last reviewed 5 October 2011.
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