There are white flakes on the body to consider the following diseases may be: the first disease, consider pityriasis rosea, the etiology is not clear, may be related to infection or swimming and other factors, there can be a long axis of the skin rash and the skin pattern consistent with the elliptic, or round-like red spots, on which you can see fine scales. In terms of treatment, you can take chlorpheniramine maleate tablets orally, with compound glycyrrhizin capsules, and use mometasone furoate ointment with zinc oxide boric acid ointment to apply treatment. The second disease, consider erythrodermic psoriasis, mainly due to the evolution of psoriasis vulgaris, may have a certain relationship with the drug stimulation of psoriasis vulgaris. In terms of treatment, oral avitamin A capsule, external tacalcitol ointment coating treatment.