When the patient occurs severe angina, should immediately stop the work in hand, maintain a quiet state, you can choose to save energy, comfortable position rest. If the chest pain is severe, the patient should immediately take vasodilator drugs, preferably nitroglycerin, which is 0.5mg sublingual. If the pain is still obvious after 5 minutes, the patient can be given the drug again. Patients with chest pain that is not relieved after 15 minutes or more after more than two doses need to seek immediate medical treatment. Another effective vasodilator drug is cardioplegia, which usually takes effect in 30 minutes after oral administration and in 2 minutes after inhalation. If the relief of chest pain is not obvious after taking cardioplegia, it is recommended to consult a doctor immediately if the pain lasts for more than 15 minutes. The two drugs mentioned above are the best drugs to terminate angina attacks quickly.