For patients with heart disease such as dyspnea, first of all, we should consider that the patient has unstable angina, or severe heart failure and lead to dyspnea, must be calm, let the patient to stop all exercise, avoid stress, walking and other situations, and to quickly put the patient in the correct position, it is best to take the sitting position so that the legs naturally drooped, to reduce the load on the heart. Secondly, if there are oxygen bags, oxygen cylinders or other oxygen absorbing devices at home, the patient should be given continuous low-flow oxygen, and the patient can be given some drugs, such as sublingual nitroglycerin, or swallowing isosorbide mononitrate. At the same time, if the patient gradually worsened dyspnea, accompanied by pain in the precordial area, you can also call 120 for help. If you have anti-platelet aggregation drugs at home, such as aspirin, clopidogrel, tegretol, etc., you can also take them when chest pain and dyspnea are severe.