Coughs that don’t get better need to be treated according to the cause, such as: colds, lung diseases, digestive system and circulatory system diseases to stop coughing, anti-infections, acid suppression and improve circulation. 1. Colds are the most common cause of coughs. For severe dry coughs, dextromethorphan can be used to relieve coughs. 2. Lung diseases, including pneumonia, bronchitis, chronic obstructive pulmonary disease, etc., when there is a clear bacterial infection, generally take penicillin, ofloxacin, etc. for anti-infection treatment, and for those who cough mucus phlegm, take aminoglutethimide, etc. for phlegm treatment. 3. Digestive system diseases, mainly refers to gastroesophageal reflux, can also stimulate the mucous membrane of the throat, cough symptoms, can use omeprazole, morpholine, etc. for acid suppression, promote intestinal dynamics and other treatments. 4. Circulatory system diseases, such as cardiac insufficiency, can also cause cough, can use digitalis, furosemide, etc. to improve circulation, diuretic treatment. If the cough does not get better, it may be related to other diseases. It is recommended to consult a doctor in time and follow the doctor’s instructions for active treatment. The above drugs should be used under the guidance of a physician.