Objective:To investigate the effect of Kaixuan Xiezhuo recipe on T helper cell 17(Th17)/regulatory T cells(Treg)balance and expression of related cytokines in peripheral blood of Yang deficiency psoriasis rats.Methods:Totally 72 rats were randomly divided into blank control group(n=16)and model group(n=56).After all the rats'backs were depilated,rats were externally coated with Vaseline in blank control group,while the rats in model group were given 5%imiquimod cream externally as well as Dahuang(rhubarb)gavage to establish the SD rat model of ...