How to treat white skin in pityriasis rosea

Pityriasis rosea is a common inflammatory skin disease that occurs in the trunk and proximal extremities of varying sizes, with an uncertain number of rose patches, with sugar-like scales on them. The disease is self-limited and generally lasts for 6 to 8 weeks. It will heal spontaneously, but there are also cases that persist for a long time. Because many patients with pityriasis rosea are prone to pigmentation after delaying treatment; According to the prodromal spot, good hair site, rash shape has typical red ring free edge inward chaff scale patch, rash long axis and skin grain parallel, it is not difficult to diagnose; after the disease can not stimulate the affected area, can be treated with phototherapy plus topical weak moderate hormone ointment.