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Rheumatic fever is an acute skin disease in which skin rashes and desquamation appear like furfur and the skin is pale red and rose. Previously red or yellow-brown patches, round or oval, whose long axis was consistent with the skin pattern, and covered with pityriasis scales were clinical features. The disease occurs in the spring and autumn, and is more common in young adults. The distribution of the rash is mainly the proximal part of the trunk and limbs, which is symmetrical. From the beginning, a large rose-colored spot is called the mother spot. The disease is self-limiting. It usually resolves on its own in 4-6 weeks, and a few have a course of 2-3 months, or even some time before it is cured. It usually does not recur and leaves no trace. This disease is equivalent to pityriasis rosea referred to by western medicine.