The easiest way to recover from angina is to rest immediately and take nitroglycerin under the tongue, which usually relieves chest tightness and chest pain within 1 minute. If the pain persists, it can be repeated 3 times within 15 minutes. If the pain persists for a long time, sublingual nitroglycerin can not be relieved, then you need to immediately call 120 to the hospital. Patients with angina need to pay attention to: quit smoking and drinking, control high cholesterol, high fat food intake; regular work and rest, to ensure adequate sleep; active treatment of high blood pressure, high blood fat and other diseases. Usually, if the patient has a generalized weakness, dyspnea, nausea and vomiting, palpitations and other symptoms, and the chest or back of the extrusion-like, radiating, burning, contraction of asphyxia-like pain, the pain involved in the arms, wrists, fingers, the symptoms lasted for about 3 to 5 minutes, you need to take nitroglycerine sublingually immediately and seek medical attention in a timely manner.