There is no best way to eliminate double lower extremity edema. There are many causes of double lower extremity edema, such as double lower extremity varicose veins, nephrotic syndrome, cardiac insufficiency, which need to be treated for the causes, such as proper elevation of the lower extremities, oral medication or surgical treatment. 1. Double lower extremity varicose veins: due to vascular pathology, blood return is impaired, resulting in edema, which can be relieved by elevating the lower extremities, and the treatment includes oral medication (e.g., Mai Zhi Ling, etc.), surgical treatment, and so on. 2. Nephrotic syndrome: due to large amount of proteinuria leading to hypoproteinemia, plasma colloid osmolality decreases, resulting in edema, need to ensure adequate rest, can be given drugs such as Irbesartan to reduce proteinuria, glucocorticoids (such as prednisone, etc.) and/or immunosuppressants (such as cyclophosphamide, etc.) to inhibit immune-inflammatory response and other treatments. 3. Cardiac insufficiency: The situation of double lower extremity edema occurs due to the stagnation of the circulation caused by the dysfunction of cardiac ejection, which requires the control of fluid intake, and can be treated with drugs such as hydrochlorothiazide tablets to reduce diuresis and swelling, and digoxin to strengthen the heart and other symptomatic treatments. There are many causes of double lower extremity edema, it is recommended to consult a doctor in time to avoid delaying the condition.