Some drugs shuold be wrapped ina piece of gauze before they are decocted together with other drugs in casethey may make the decoction turbid, produce irritation to the throat or stick to the pot bottom, such as Chishizhi (Halloysitum Rubrum), Huashi (
Talcum), Cheqianzi (Semen Plantaginis), Xuanfuhua ( Flos Inulae ), Puhuang (Pollen Typhae) and so on.