The left sternum and subcostal vague pain can be relieved by applying the following methods: 1. If the pain is relieved at home by itself, you can apply non-steroidal anti-inflammatory drugs to observe the situation, you can apply acetaminophen, compound aminobarbital, indomethacin and salicylic acid. For example, the drugs such as bye aspirin, Enrico, Advil, Ibuprofen, etc., to observe whether there is relief and signs of relief. 2, if it is caused by myocardial ischemia will also appear in the left chest, the faint pain below the ribs, at this time, you can take drugs to improve myocardial ischemia and drugs to dilate the coronary arteries, you can take nitrate drugs. For example, take 2-4 capsules of nitroglycerin under the tongue and observe for 15-30 minutes to see if the pain is relieved.3. You can also apply cardiovascular dilating drugs, such as salvia, safflower and rhodiola, to relieve the vague pain caused by myocardial ischemia.