2270 



COSMOPOLITAN SKIN DISEASES 



ECZEMA— ACRODERMATITIS PERSTANS— PSORIASIS— 

 PARAPSORIASIS— SEBORRHCEA— DERMATITIS EXFOLIATIVA. 



Eczema is extremely common, and all varieties of it are found 

 in the tropics, as in temperate zones, both in natives and' Europeans. 

 The treatment is often very difficult. In our experience greasy 

 preparations and even pastes are as a rule badly borne except 

 in some chronic cases. Generally speaking, it is best to use lotions 



Fig. 894. — Psoriasis IN A Sinhalese. Fig. 895. — Dermatitis Exfoliativa 



IN A Sinhalese. 



such as resorcin (J to i per cent.) or liq. plumbi (2 per cent.). Some 

 cases of eczema will improve only on the patient going to a cooler 

 climate. Wilson's Eczema verrucosum, characterized by great 

 dryness and hardness and warty appearance of the affected part, 

 is frequently met with among natives, in whom it mostly attacks 

 the toes. 



Acrodermatitis Perstans. — We have seen two cases of a very 

 obstinate chronic dermatitis, with exfohation, on the extremities 



