Pulmonary heart disease is due to increased pulmonary vascular resistance, which leads to pulmonary hypertension. Therefore, the patient’s right load increases and the right ventricle enlarges, and heart failure occurs, and the patient has predominantly right heart failure. For right heart failure, the following drugs can be applied for treatment: 1. Give drugs to lower the pulmonary artery pressure for treatment, such as oral captopril, sildenafil and other drugs to lower the pulmonary artery pressure. 2. Reduce the load on the heart and apply diuretics, such as applying furosemide, spironolactone, hydrochlorothiazide, etc. for diuresis. 3. Apply appropriate amount of cardiac stimulants, such as digoxin, etc. 4. Perform heart rate, blood pressure, pulse, artery, oxygen saturation, etc. monitoring, and adjust the dose of medication at any time according to the monitoring situation.