Wu Ling San can treat edema caused by water-dampness internal suspension (water-dampness stays in the body). Edema caused by heart disease can be taken if it is recognized as water-dampness internal suspension. Wu Ling San is composed of poria, ze diarrhea, atractylodes, poria, and cinnamon sticks, which have the effects of inducing diuresis and seepage of dampness (to promote the flow of water to dispel dampness), and warming yang and transforming qi (to warm yang qi in the body). This formula can be used in treating water retention syndrome (a type of syndrome manifesting as dysuria, bloating of the abdomen, thirst for water and vomiting after drinking, etc.), phlegm-drinking (a pathological product formed as a result of impaired metabolism of water and fluid) disease, as well as conditions caused by internal retention of water-dampness, such as oedema, diarrhea, and so on. If the edema caused by heart disease is identified as water-dampness internal stagnation, Wu Ling San can be taken in conjunction with it, which can play the role of seepage of dampness, diuresis and elimination of oedema (to pass urine and eliminate oedema). Chinese medicine should be taken under the guidance of a physician. If you suffer from heart disease, edema and other diseases, it is recommended to seek medical treatment.