There is no absolute best way to lower diastolic blood pressure, which can be treated with medication and surgery. 1. Primary high diastolic blood pressure: diuretics (furosemide, hydrochlorothiazide), beta-blockers (propranolol, metoprolol), calcium channel blockers (nifedipine, amlodipine), angiotensin-converting enzyme inhibitors (captopril, enalapril), and angiotensin II receptor antagonists (irbesartan) can be used for treatment. 2. Secondary diastolic blood pressure elevation (1) Primary aldosteronism: caused by adrenocortical adenoma or carcinoma, surgical removal of the tumor is recommended. Adrenal cortex hyperplasia can be treated with spironolactone and other drugs. (2) Aortic stenosis: It can be treated by surgery or interventional therapy. The above drugs are recommended to be used under the guidance of a doctor. For patients with high diastolic blood pressure, it is recommended to go to the hospital in time and choose the appropriate method of treatment under the guidance of the doctor.