Lung cancer patients with chest tightness and shortness of breath can consider taking oral theophylline extended-release tablets, which have direct relaxation effect on respiratory smooth muscle, thus relieving patients’ symptoms of chest tightness and shortness of breath. If patients have chest tightness and shortness of breath due to lung infection, they can take oral antibiotics to relieve the symptoms. In the case of bacterial infection, oral amoxicillin capsules can be taken, and viral infection can be oral oseltamivir tablets. However, many patients have chest tightness and shortness of breath because the tumor compresses the trachea or bronchus, and the effect of medicine at this time is generally not very good, then we should take the appropriate anti-tumor treatment plan, so that the patient’s tumor can be controlled, and then the patient’s chest tightness and shortness of breath symptoms will also be solved. The above comments are for reference only, if the patient has the above symptoms, he should go to the hospital as soon as possible to receive professional treatment.