If a patient has left anterior chest pain, consider the following causes: First, consider cardiogenic diseases, such as unstable angina pectoris in coronary artery disease, at this time you can take nitrate drugs under the tongue, such as taking isosorbide mononitrate, or nitroglycerin, or quick-acting heart pills, and have the patient stop all exercise and avoid excessive emotional tension, anxiety and other factors. If the patient has a clear history of coronary artery disease, anti-platelet aggregation drugs, such as aspirin, clopidogrel or Tegretol, commonly used drugs such as Biaxin enteric tablets, Bolivar or Belinda, and statin lipid-lowering drugs, such as atorvastatin calcium tablets, resulvastatin calcium tablets, etc., can be taken. In addition, beta-blockers such as metoprolol tartrate or metoprolol succinate should be taken, and ACEI drugs such as captopril or enalapril can also be applied. Secondly, if the left anterior chest pain is caused by trauma, you can take certain antipyretic and analgesic drugs, such as Fotarine, Fenbuterol, Cilpro, Ibuprofen, etc., and observe the situation.