Coronary heart disease breathlessness can use nitroglycerin, oxygen and other relief symptoms, but all need to go to the hospital. Coronary heart disease is known as coronary atherosclerotic heart disease. Nitroglycerin can be taken under the tongue to relieve the symptoms; oxygen cylinders and other oxygen inhalation devices are available at home, oxygen can be inhaled, these have to relieve dyspnea, dilate the role of blood vessels. If you are only slightly out of breath, you can seek medical attention after relief: if it is very difficult to breathe, you need to seek medical attention immediately while relieving the symptoms. When you can’t breathe, it means that the blood flow in the coronary arteries is not enough to meet the needs of myocardial metabolism and cause ischemia and hypoxia, and myocardial infarction may occur at any time. However, in any case, it is necessary to go to the hospital eventually to avoid ignoring some invisible symptoms, and should be regularly reviewed after treatment!