Pericardial effusion may be caused by pericarditis, trauma, etc. The fastest way to eliminate it is through general treatment, symptomatic treatment and cause-specific treatment. 1. General treatment: monitor basic vital signs such as blood pressure, respiration, pulse rate, blood oxygen, etc., give high protein, high calorie and easily digestible food, and limit salt intake, bed rest, and restrict activities. 2. Symptomatic treatment: Stable patients can take non-steroidal anti-inflammatory drugs such as aspirin, ibuprofen, indomethacin and other drugs or glucocorticoid drugs such as prednisone, prednisone and other treatment. When a large amount of pericardial effusion produces obvious symptoms of cardiac tamponade, pericardiocentesis and drainage should be performed as soon as possible. 3. Treatment for the cause: patients with pericardial effusion caused by water and sodium retention can take furosemide, hydrochlorothiazide and other diuretics for treatment; when pericarditis caused by tuberculosis exudates effusion, it is necessary to take rifampicin, isoniazid and other anti-tuberculosis drugs for treatment; pericardial effusion caused by coronary artery perforation due to penetrating wounds and cardiothoracic surgery requires rapid surgical treatment. It is recommended that patients be treated with medication under the guidance of a physician.