Zhi Bai Di Huang Wan cannot treat urticaria. Zhi Bai Di Huang Wan is composed of Zhi Mu, Huang Bai, Shu Di Huang, Cornus officinalis (system), Mudan Pi, Poria, Ze Xie Di, yam, in fact, is six flavors of Di Huang Wan plus Huang Bai, Zhi Mu, and its function is to nourish yin and clear away heat. It is used for hot flashes and night sweats, tinnitus and spermatorrhea, and dry mouth and throat. The symptoms of urticaria are far from each other.