White patches on face or skin

White patches on face or skin

Pityriasis comes from Greek word bran and is used to describe flaky scaly skin. There are a few types of pityriasis skin conditions namely Pityriasis Alba, Pityriasis Lichenoides, Pityriasis Rosea, Pityriasis Rubra Pilaris and Pityriasis Versicolor (Tinea Versicolor)....