Pityriasis rosea is a more common clinical erythematous scaling class disease, non-dermatologists are often difficult to correctly diagnose and treatment, the following is a brief introduction to the clinical performance and treatment of pityriasis rosea. The cause of pityriasis rosea is unknown, acute, the course of the disease is self-limiting skin disease, the lesions are of varying sizes of round or oval rose-colored rash, its surface is covered with circle collar-like bran-like scales, occurring mostly on the trunk and proximal extremities, the long axis of the lesions are distributed along the skin lines, initially with the mother spot, intermittently after a certain time the lesions are widely distributed, the incidence of men and women is not significantly different, mostly seen in children of more than 10 years old to adults of 40 years old, occurring in The disease is self-limiting and rarely occurs in the spring and autumn. The course of the disease is self-limiting, rarely recurrence, seems to be related to the virus infection, but so far not isolated virus, there are reports of gold, bismuth, arsenic, etc. can cause pityriasis rosea-like damage. The light person has no conscious symptoms, the course of the disease has self-limiting, no treatment can also be self-receding, the course of the disease about 2 months, part can last for half a year, or even longer, treatment available NB-UVB irradiation, can significantly shorten the course of the disease. The treatment can be supplemented with antihistamines for symptomatic treatment, topical application such as furnace glycol, hormone ointment, sulfur cream, etc., can not use the more irritating drugs. Usually pay attention to take hot baths as little as possible.