Scale down

These thick scales are bound down to the base of the hair follicles, matting them together. Sometimes islands of pus gather under the matted hairs and clumps of hair may easily be pulled out. 

This condition is called pityriasis amiantacea  (asbestos-like scaling) and can be seen with various underlying conditions such as psoriasis, eczema or tinea of the scalp. The scale can be removed with a mixture of 3% LPC (liquor picis carbonis), 3% sulfur and 3% salicylic acid in emulsifying ointment to 100 g. 

This should be applied at night and washed out in the morning. The underlying condition must be treated to prevent recurrences. 

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