Poria, as a kind of Chinese medicine, is often used in clinical application for internal use in decoction, or in pills and powder, used for the treatment of edema, deficiency of the spleen with little food, restlessness of the mind and spirit and other diseases. The specific dosage should follow the doctor’s instructions. Poria belongs to the water-inducing and dampness-permeating (promoting the operation of water to dispel dampness) medicine, with calm and peaceful nature, sweet and light taste, belonging to the heart meridian, the spleen meridian, the lung meridian and the kidney meridian, it has the efficacy of strengthening the spleen, water-inducing and dampness-permeating and tranquilizing the mind and tranquilize the spirit, and it is suitable for the treatment of patients suffering from oedema with low urine output, deficiency of spleen with low food intake, loose stools, phlegmatic drinks, insomnia and restlessness of the heart and mind, and so on. It is contraindicated for those who are allergic to the product, have deficiency cold and essence slippery, or have yin deficiency without water-dampness. Take a light diet during the medication, do not eat indigestible food, do not eat greasy food. The use of Poria should be combined with the patient’s own condition, correctly decocted and reasonably compounded under the guidance of a professional physician, and not used blindly.