👉 Pityriasis rosea, also known as pityriasis roseae or pityriasis roseoides, is a skin condition characterized by white patches on the cheeks and chin. This condition can be caused by an allergic reaction to certain substances such as dyes, fragrances, and perfumes. The term "pityriasic" comes from the Greek word "piropis," which means "friendliness," because pityriasis is often associated with a feeling of friendliness or
