Foot edema does not go away first find the cause of swelling, common kidney disease, liver disease, heart disease, thyroid disease and other internal system diseases caused by, in addition if the lower extremity venous valve function is poor, can also lead to foot swelling, and then follow the doctor’s instructions for the cause of the symptomatic treatment. 1. Kidney disease: for example, swollen feet caused by glomerulonephritis or nephrotic syndrome in kidney disease can be treated with drugs such as timosartan or prednisone acetate. 2. Liver disease: for example, patients with cirrhosis and ascites will have swollen feet in the late stage, and then need to supplement human albumin and other drugs. 3. Heart disease: patients with heart failure may have edema caused by circulation stasis, which can be treated in a timely and symptomatic manner according to the cardiologist’s instructions. 4. Thyroid disease: edema caused by hypothyroidism can be treated with levothyroxine sodium tablets. 5. Poor function of lower extremity venous valves: If the lower extremity venous valves are poorly functioning, you can wear compression stockings to treat edema. There are many reasons for foot edema, it is recommended that patients go to the hospital in a timely manner, under the guidance of the doctor to improve the examination, to clarify the cause of edema, and comply with the doctor’s instructions for symptomatic treatment.