Changed the heart valve swollen feet can be treated by drugs, mainly cardiac, diuretic, vasodilator drugs. 1. cardiac drugs: commonly used drugs are mainly dopamine, dobutamine, digoxin, etc., can strengthen the myocardial contractility, but also will not strengthen the myocardial oxygen consumption, reduce the burden on the heart, so as to alleviate the edema of the feet. 2. Diuretic drugs: commonly used drugs are hydrochlorothiazide, furosemide, amphotericin, etc., which can help patients with replaced heart valves discharge excess water, reduce the burden on the heart, reduce pressure, thus alleviating the symptoms of foot edema. 3. Vasodilator drugs: commonly used drugs include prazosin, diphenhydramine nitrate, amlodipine, etc. By expanding small veins or arteries, they can reduce the load on the heart, increase the amount of cardiac blood transfusion, and promote the discharge of fluids from the body, thus relieving foot edema. All of the above drugs should be used under the guidance of a doctor, and should not be used blindly on their own to avoid aggravating the condition.