If not treated in time, pityriasis rosea may scar if it injures the dermis; if treated in time the lesions are mild and usually do not scar. Pityriasis rosea is an acute, self-limiting, eruptive skin disorder characterized by oval, slightly inflamed, scaly papules on the trunk and proximal extremities. The papules and plaques resolve within 4-6 weeks, and occasionally the condition persists for several months; post-inflammatory hyperpigmentation is a common sequela in dark-skinned individuals. 1. Scarring: If the patient’s lesions are severe and the itching is obvious, and if the process is not properly cared for, such as scratching and other mechanical injuries to the dermis, there will be a possibility of scarring after healing. In addition, if the patient is a scarred body, even a small lesion will leave a scar. 2. Will not leave scars: generally pityriasis rosea will not leave scars, this condition is self-limiting, in the clinic can use moisturizers, antipruritic agents and hormone drugs, anti-allergic drugs for symptomatic treatment. However, some patients will have hyperpigmentation after the rash subsides. Each person’s physique is different, the severity of the disease is different, the recovery situation will be different, it is recommended to go to a regular medical institution under the guidance of specialists to standardize the treatment, to reduce the adverse effects.