First aid measures Rest and sublingual nitroglycerin. As soon as the symptoms of angina occur, rest and sublingual nitroglycerin should be administered, usually within one or two minutes after rest or nitroglycerin, the angina can be relieved. You can also contain or take Chinese medicine compound Danshin drops or heart pills, but it takes a longer time to relieve angina pectoris. If nitroglycerin is not relieved after five minutes, another nitroglycerin can be included. If angina occurs for the first time, regardless of whether the drug can relieve, you need to go to the hospital as soon as possible, because the first occurrence of angina, there is a risk of myocardial infarction. Treatment 1, medication Nitrate, such as nitroglycerin, cardiac pain, Xinkang, long-acting heart pain treatment. Statin lipid-lowering drugs, such as Lipitor, Sulforaphane, Lovastatin, can slow down or stop the progress of atherosclerosis. Antiplatelet agents, aspirin 100-300mg daily for life. In case of allergy, take Valtrex or Bolivar. Beta-blockers, commonly used are betalactam, atenolol, and canco. Calcium channel blockers, preferred by patients with coronary artery spasm, such as Hersinol, Bexin with. 2.Surgical treatment (coronary artery bypass grafting ) Coronary artery bypass grafting is to take a section of blood vessel from other parts of the patient’s body and connect it to the two ends of the narrowed or blocked coronary arteries, so that the blood flow can be bypassed through the “bridge”, thus enabling the ischemic heart muscle to get oxygen supply and This allows the ischemic myocardium to be supplied with oxygen and relieves the symptoms of myocardial ischemia. This procedure is a cardiac surgery, which is more invasive but more effective. It is mainly used for patients with severe coronary artery disease (left main stem lesions, chronic occlusive lesions, diabetic multivessel lesions) who are not suitable for stenting. 3.Interventional therapy (Percutaneous coronary intervention (PCI): stenting) Interventional therapy is not a surgical procedure but a cardiac catheterization technique, specifically, through the femoral artery at the root of the thigh or the radial artery at the wrist, a stent or other device is placed inside the coronary artery through vascular puncture to achieve the purpose of relieving coronary artery stenosis. Interventional treatment is less invasive, more effective, and carries less risk (<1%). The restenosis rate of common bare metal stents is 15-30%. The application of drug-coated stents has further improved the long-term efficacy of stenting, with restenosis rates of 3% in the general population and about 10% in diabetic/complex lesions, with results comparable to those of coronary artery bypass surgery. 4. Other treatments Exercise therapy: Carefully scheduled exercise with an appropriate schedule can help promote the development of collateral circulation and improve symptoms by increasing the tolerance of physical activity.