Pay attention to proper control of water consumption in summer with swollen feet, drinking no more than 1500ml per day, while not standing or sitting for a long time to reduce the occurrence of foot swelling, and padding both lower limbs at night when sleeping. If the condition persistently does not ease, you can take diuretic and anti-swelling drugs such as torasemide, spironolactone tablets or hydrochlorothiazide tablets and furosemide tablets to reduce edema. Foot swelling is a physiological factor on the one hand, seen in poor venous reflux of lower limbs or endocrine non-specific edema, and on the other hand, seen in pathological factors such as cardiac insufficiency, liver cirrhosis, nephrotic syndrome. Therefore, it is necessary to seek timely medical attention to improve the electrocardiogram, cardiac ultrasound, cardiac enzymes, infarction triad, liver and kidney function, blood routine, urine routine and other tests.