Coronary intervention is only one method of treating coronary heart disease and does not mean that the disease is cured after treatment. Some patients may experience restenosis or acute thrombosis some time after the procedure, leading to recurrence of the disease. The control of coronary heart disease still requires lifestyle adjustment, adherence to medication and regular follow-up. Adhere to the medication schedule as prescribed by the physician: ① Oral aspirin, clobigrel or tigretol. These antiplatelet drugs are recommended by physicians for longer-term use after intervention, usually for 9 months to 1 year. Adherence to this medication reduces the deposition of various substances in the blood at the site of the lesion, which in turn reduces restenosis at the site of the lesion. ②Oral statin lipid-regulating drugs can effectively prevent the recurrence of coronary heart disease by strictly controlling the blood lipid level and delaying the formation of coronary plaque. ③For high-risk coronary patients, especially those with multiple vascular lesions that have failed to undergo complete revascularization, long-term oral nitrates may still be required after surgery. ④For patients with complications such as hypertension and diabetes, simultaneous antihypertensive and hypoglycemic therapy is required. Regular review , regular monthly outpatient review, and coronary angiography six months after surgery if necessary. Outpatient checkups can detect possible side effects of oral medications and recurrence of myocardial ischemic symptoms in a timely manner so that doctors can deal with them effectively. Long-term oral medication may cause side effects or require dose adjustment, so regular blood tests are necessary.