Causes of rose herpes

Pityriasis rosea is an acute inflammatory skin disease, typical skin lesions are covered with ring-like chaff rosea spots, good in spring and autumn. The etiology is unknown, infection, drugs, autoimmunity, genetic allergies and other possible causes. It is generally believed that virus infection, but not yet determined the virus type, herpes virus, influenza virus, EB virus, cytomegalovirus and other possible involvement in the occurrence of this disease. Many drugs can also induce pityriasis rosea, such as arsenic, organic mercury, interferon and so on.