Psoriasis rash covering the whole body requires regular and systematic drug treatment, including the following: 1. Compound glycyrrhizic acid monoammonium S sodium chloride injection can be ordered quietly to play the purpose of immune regulation and anti-proliferation. It can also be combined with the choice of polyene-phosphatidylcholine injection and vitamin C injection for complementary treatment. If the rash is bright red in color, you can sedate feverfew injection, andrographolide sulfonate injection for clearing fire and detoxifying treatment. 2, oral medications, you can take internal Avia, cyclosporine, methotrexate, etc., can also be supplemented with compound amineptine tablets, compound Qing Dai capsule treatment. 3, topical medications, you can apply tacalcitol ointment, mixed with hydrocortisone butyrate ointment treatment.