Elderly people with swollen feet and calves should be advised to reduce their activities, elevate their legs when sitting or sleeping, and put pillows under their legs to promote blood return to the veins of the lower limbs to avoid blood pooling in the lower limbs. Diet can be appropriate to eat more watermelon, winter melon, grapes and other melons with diuretic effect to reduce subcutaneous edema by promoting urination. In addition, you can take cardiotonic, diuretic and blood-stasis activating drugs orally, all of which can reduce the edema of lower limbs. Drugs such as human albumin and low-molecular dextrose can also be injected intravenously to increase the colloid osmotic pressure of plasma, thus increasing the water in the tissue interstitial flow back into the blood vessels and reducing lower limb edema.