Seborrhoeic dermatitis (Seborrheic eczema Cradle cap) |
Overview Seborrhoeic dermatitis is an inflammatory skin disorder affecting oily areas of the body most commonly the scalp inside the ears eyebrows and skin folds in and around the waist. When it affects infants typically in the first three months after birth it is known as Cradle cap. It is less common after the age of one. However it may flare up again as hormone levels begin to rise in the teen years. Symptoms Adults
Infants Cradle cap is characterized by thick crusty scales on the scalp in the ears on the nose and in the groin. Parents should remember that this is not a disease that causes harm despite cosmetic concerns. Causes The exact cause of seborrhoeic dermatitis is unknown. It is more common in those with a weakened immune system and the risk of a flare-up may be increased by stress fatigue poor hygiene and by acne and other skin disorders. There may also be a genetic link as is tends to run in families. Treatment In infants massaging the baby's scalp with mineral oil may help. This should be done at night before the child goes to sleep. The following morning wash the baby's hair and scalp. Lifting the crusts of skin with a soft brush or comb may also help. For adults the primary treatment is the application of ketoconazole creams and/or shampoos. Shampoos containing zinc pyrithione selenium sulfide or coal tar may also help as may lotions containing alpha-hydroxy acids. Soap may precipitate a flare-up and a soap-alternative should be used instead. These may be used weekly or only with flares. Over the counter hydrocortisone cream can help with the redness and inflammation particularly on the face. As well the shampoos should be applied not just to the scalp but also to other affected areas. |