Myocardial ischemia occurs, firstly, consider myocardial ischemia caused by coronary artery disease, if the patient usually has high risk factors, such as smoking, drinking, obesity, hyperlipidemia, hypertension, diabetes mellitus and so on, it is necessary to correct for the above adverse factors. Secondly, the application of medication drugs, choose anti-platelet drugs, such as aspirin, clopidogrel, etc.; there are also plaque stabilizing drugs and lipid-lowering drugs, choose statins or beta drugs. If the patient’s angina attacks frequently, need to add nitrate drugs, such as isosorbide mononitrate; and reduce myocardial oxygen consumption of drugs, such as metoprolol, diltiazem, trimetazidine and so on. Severe myocardial ischemia need to go to the hospital in time for treatment, such as coronary angiography, to clarify the severity of coronary heart disease.