Heart failure is heart failure. Heart failure may be a decline in heart function caused by diseases such as myocardial infarction, cardiomyopathy, and myocarditis. Left heart failure may lead to fluid in the lungs, fluid in the lungs can be treated with diuretic, vasodilator, cardiotonic and other drugs. 1. Diuretic drugs: heart failure pulmonary effusion can be prescribed diuretic drugs such as hydrochlorothiazide, furosemide, etc. to reduce blood volume and reduce the burden on the heart. But it may lead to electrolyte disorders and other side effects. 2. vasodilating drugs: heart failure pulmonary fluid can be prescribed to use sodium nitroprusside, nitroglycerin and other cardiac vasodilating drugs, but may lead to headaches, low blood pressure and other side effects. 3. strong heart drugs: heart failure pulmonary effusion can be used to enhance myocardial contractility of the drug therapy, but hypertrophic cardiomyopathy and other blood outflow channel patients can not be used. Heart failure pulmonary effusion is a very serious disease, must follow the doctor’s instructions to use drugs, and regular review of electrolytes, electrocardiogram and other items.