Poria cocos is the sclerotium of Poria cocos, a fungus of Polyporaceae, parasitic on the roots of pine trees. Its clinical application can be divided into five varieties: Poria cocos skin, Poria cocos skin, Poria cocos skin, Poria cocos skin and Poria cocos skin, with different efficacy and indications.

Poria cocos skin: it is the black skin of Poria cocos sclerotium, and it is good at diuresis and detumescence. Suitable for edema, dysuria and other symptoms. It is often combined with ginger bark, mulberry bark, tangerine peel and areola bark, namely Wuling powder.

Poria cocos with skin: Poria cocos is chopped and red Poria cocos with skin shell is used, which has the same effect as Poria cocos skin. If Poria cocos without skin is used, a mixture of 3/4 Poria cocos and 1/4 Poria cocos skin can be used instead.

Red Poria cocos: The red part of Poria cocos sclerotium, which is good at promoting diuresis and infiltrating dampness. Suitable for stopping drinking when water is wet. It is often used with Polyporus and Alisma orientalis.

Poria cocos: The white part of Poria cocos sclerotium, which is good at strengthening the spleen. It is suitable for deficiency of spleen and asthenia, and eating less loose stool. It is often used with Dangshen, Atractylodes macrocephala and Glycyrrhiza uralensis.

Poria cocos: a small piece cut from the pine root of Poria cocos sclerotium, which is good at calming the heart and calming the nerves. Suitable for anxiety, palpitation, insomnia and other symptoms. In order to strengthen the curative effect, it is often mixed with cinnabar, which is called Zhu Shenfu or Zhu Fuyiling.