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afya Seborrhoiec dermatitis

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20160425222526 Ben  
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scalp (cradle cap), nappy, face, flexures
first weeks of life - erythematous rash with yellow scales, usually resolves by 8/12
Mx - baby shampoo and baby oil, if severe - mild steroid - 1% hydrocortisone

Chronic dermatitis - inflammatory reaction to proliferation of normal skin fungus - Malassezia furfur
Common - 2% population

Features
Eczematous lesion on sebum rich areas - nasolabial, periorbital, auricular, scalp (dandruff)
otitis externa and blepharitis

associated with HIV and Parkinsons

Mx
scalp - OTC - Zinc pyrithione (Head n shoulders) or tar (neutrogena Tgel)
2nd line ketoconazole
selenium sulphide and topical steroid may help

face and body
topical antifungals - ketoconazole
topical steroids (short term)

note difficult to treat and recurrence is common
little role for emollients