Pleural effusion caused by heart failure should actively treat the primary disease, and take medication, surgery and so on. 1. Primary disease treatment: For pleural effusion caused by heart failure, we should treat the primary disease, pay attention to limiting sodium intake, control weight, and cooperate with doctors to take oral metoprolol, digitalis and other drugs. 2. Drug therapy: oral diuretics can be used to treat pleural effusion caused by heart failure, such as furosemide, spironolactone and other drugs. 3. Puncture and drainage treatment: If there is too much fluid, puncture and drainage treatment can be taken to suck out the excessive fluid to relieve the symptoms. Ultrasound-guided thoracentesis and drainage are common. 4. Supplementary protein: patients with pleural effusion lose a lot of protein, and should be supplemented with albumin or fresh frozen plasma as appropriate. Pleural effusion caused by heart failure should be taken under the guidance of the doctor to take treatment, pay attention to regular review. Daily attention should be paid to regular diet, can eat more high-protein, vitamin-rich food, quit smoking and alcohol.