Wu Ling San is used for the treatment of edema caused by Yang failure to transform Qi (blockage of the body’s Qi) and water-dampness internal suspension (water-dampness stays in the body). Specific treatment plan should be chosen according to the cause of the disease and the individual’s physical condition, there is no such thing as “the best”, so please follow the doctor’s instructions to regulate the treatment. Wu Ling San has the efficacy of warming yang and transforming qi (warming yang qi in the body), promoting dampness and promoting water circulation, treating oedema caused by yang not transforming qi (blockage of qi in the body, malfunctioning of yang qi qi and transforming function) and water-dampness internal stagnation (water-dampness stays in the body, obstruction of fluid transmission and excretion, resulting in a large amount of stagnation of fluid in the body and formation of the evidence), with symptoms of urinary anomalies, edema, abdominal distention, vomiting, diarrhea, and thirst for water. Wu Ling San is mainly composed of Poria cocos, Zea laxa, poria, cinnamon, and fried atractylodes. It should be noted that the adverse reactions and contraindications of Wu Ling San are not very clear at present, lack of relevant clinical information, it is recommended to closely observe their own situation when using the drug. If there is a need to use Wu Ling San, to first clarify their own physical state, it is recommended to carry out traditional Chinese medicine identification, under the guidance of the doctor to use, do not blindly take on their own.