Hidden pain in the left chest should first clarify the cause, which may be the heart, pleura, gastrointestinal and other problems, and then treat the cause. For example, angina pectoris can be sublingual nitroglycerin and so on. 1. Left chest pain may be due to coronary artery disease caused by myocardial ischemia, resulting in angina pectoris attack, manifested in the retrosternal, precordial area of pressure, boring pain or tight pain, can be radiated to the left upper limb. Angina attack can be sublingual nitroglycerin, remission can be oral metoprolol, aspirin, statins and other drugs to improve myocardial ischemia, prevention of myocardial infarction. 2. left chest pain can also be seen in patients with pleurisy, can be secondary to lung infections, symptoms often fever, cough, chest pain, chest pain is mostly vague pain, dull pain or stabbing pain, can be exacerbated by coughing or breathing; to the cause of the treatment, such as infection caused by the oral sensitivity of antimicrobial drugs such as penicillin, cephalosporin, etc., if the tuberculosis, to standardize the anti-tuberculosis treatment, oral rifampicin, isoniazid and other drugs. 3. Left chest pain can also be seen in the digestive tract problems, such as reflux esophagitis, gastritis, often manifested as regular, abdominal pain after eating, eating can be relieved, you can take oral acid inhibitors such as omeprazole, gastric drugs such as bismuth potassium citrate, etc., and sometimes feel left chest pain due to the pain of the involvement. In summary, the left chest pain should be timely to the hospital to clarify the diagnosis, the cause of the treatment. Medications should be used under the guidance of a doctor.