If you find that the elderly face is swollen and you want to reduce the swelling, you can pay attention to moderate salt intake and control water, in addition, you can use some diuretic drugs to treat it, of course, the main thing is to find the cause of the disease and deal with it from the cause. At present, the main diuretic drugs commonly used in clinical practice are hydrochlorothiazide, furosemide and torasemide, of which hydrochlorothiazide is a more moderate diuretic, while the latter two are more potent diuretics. The swelling of the face may disappear soon after diuresis, but the application of this drug should not be too long, usually 3-5 days, and stop after the edema has subsided, otherwise it will easily cause hypokalemia. The main thing is to look for the cause and deal with it, because if it is not dealt with from the cause, the edema may appear again soon. The more common causes are nephritis, nephrotic syndrome and liver disease, thyroid disease and heart disease. The diagnosis of these diseases requires the improvement of urinary routine, liver and kidney function, thyroid function and other related tests. Because the diseases involved are different, the treatment is also different. In the case of hypothyroidism, for example, long-term supplementation with levothyroxine sodium tablets will need to be given for treatment.