By Gary M. White, MD

The term ectodermal dysplasia (ED) is used to describe a group of rare genetic disorders characterized by abnormalities of two or more ectodermal structures, principally the skin, hair, nails, teeth, and sweat glands. In the past, dermatologists have described two main types, hypohidrotic and hidrotic. Now however, there are over 100 different types of ectodermal dysplasias.


Topical cetirizine and oral vitamin D appears to be a valid treatment for the hypotrichosis associated with ectodermal dysplasias [JEADV 2017;31;367].


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