Poria and cloud ling are not exactly the same, cloud ling is a kind of Poria. Poria is sweet, light, and flat; attributed to the heart, lung, spleen, kidney meridian. It has the function of seeping dampness and inducing diuresis, benefiting the spleen and stomach, and tranquilizing the mind and tranquillizing the spirit; it is mainly used for treating dysuria, edema and distension, phlegm and drink (pathological products formed by water metabolism disorders), coughing, vomiting and retching, diarrhea, spermatorrhea, gonorrhea, palpitation and amnesia, etc. It is a kind of Poria. Poria is a kind of Poria, belongs to the family of Poriaceae parasitic plants, often with pine trees as the substrate camp rot parasitism, Poria produced in Yunnan, a round or oblong, black and brown skin with fine wrinkles, white meat, iron, better quality, for the Taoist medicinal herbs. Poria cocos is generally a good quality local herb, with the ability to diuretic and seepage of dampness (promote the flow of water to get rid of dampness), strengthen the spleen and stomach (to restore the function of the spleen and stomach). If treatment is needed, please standardize the use of medication under the guidance of a doctor, and should be reviewed regularly during treatment, with additional or reduced use according to the evidence.