Pityriasis Rosea is a common skin disease. We assume that the disease is due to “windy heat being depressed in the muscles and skin, and being blocked under the skin and outside of the muscles and prolonged blockage caused pathological changes of the skin” and the therapeutic methods ought to be “relieving internal heat, antitoxication, vigor of the blood state and removing the wind” of a series of 50 cases so treated, 49 made practically favorable response.