What disease is pityriasis rosea?

Pityriasis rosea is a skin disease, is an inflammatory, and self-healing skin disease. Pityriasis rosea is mainly oval, round brown or reddish chaff scale spots as the main performance, is a skin disease belonging to inflammation, mainly easy to occur in the patient's limbs, body trunk, but the specific cause of the disease is not clear. Most people think that pityriasis rosea performance and viral infection has a direct relationship, and that parasites, fungi, bacteria, allergies and other factors, will cause skin damage to patients, the skin will show some oval or round pale red patches of varying sizes. Because this is a dermatological disease, so when showing skin redness and other performance, should be timely to the hospital dermatology department for examination.