Patients with coronary heart disease may have angina at any time, so they are required to carry with them some emergency drugs, mainly drugs that can quickly relieve angina, such as nitroglycerin, quick-acting heart pills, cardiac pain, Kepone, betalactam, sulodextrin and other drugs. If you have an acute attack of angina, stay sedated, stop all activities and rest in place. Immediately sublingual nitroglycerin 1 tablet (0.5mg), nitroglycerin take effect 2 to 5 minutes after taking, if not, take 1 tablet every 5 minutes, can be applied 3 times in a row. If there are uncomfortable reactions such as head swelling and low blood pressure when taking nitroglycerin, you can also take 10-15 capsules of quick-acting heart pills under the tongue. If angina pectoris is accompanied by elevated blood pressure, take 1 tablet (12.5mg) of Kepone sublingually to lower the blood pressure within 5 minutes for 4-6 hours. In case of typical exertional angina attack with elevated blood pressure and accelerated heart rate (>70 times/minute) without heart failure and conduction block, take 1 tablet (25mg) of betalac by mouth or chewed; if the angina attack is mostly at rest, consider it to be related to coronary spasm, and take 1 tablet (30mg) of Hepesol by mouth; if the angina attack is related to emotional agitation and other factors, take 1 tablet (1mg) of Xuloxane by mouth. If the patient has frequent angina pectoris, even with 3 times of nitroglycerin is still ineffective, suggesting that the patient may have an acute myocardial infarction, should go to the hospital as soon as possible; if self medication relief, the patient should also go to the hospital as soon as possible for coronary angiography examination.