Effect: Cool and activate the blood, clear away heat and toxic materials, diaphoriesis, removing ecchymoses, regulating body immunity.it can dredge the microcirculation directly, regulate internal secretion, eliminate the haxard of harmful materials(such as histamine) on body(particular the immune system), regulate immunity function radically, correct the disorganized function of immune system(particular humoral immunity), restore the epithelium, result in the healthy skin. the effect of treating psoriasis and vitiligo is notable, one month is a period of treatment, generally having obvious effect or curing in 2-3 priod.