There are many causes of a dry cough that won’t stop, commonly respiratory tract infections, pharyngeal lesions, other diseases that irritate the throat, lung tumors and so on. 1. Respiratory tract infections: Atypical pathogens such as mycoplasma, chlamydia and viruses infect the respiratory tract and cause a dry cough as the main symptom. Antibiotics such as erythromycin, azithromycin, penicillin and other medications are used according to the severity of the condition and under the professional guidance of the doctor. 2. Pharyngeal lesions: pharyngitis, tonsillitis, pharyngeal polyps and other pharyngeal lesions can irritate the throat and cause a dry cough. Can take azithromycin anti-inflammatory, sterilization, while taking Pentoxyverine citrate tablets, codeine orange tablets and other cough suppressants to relieve symptoms. 3. Other diseases: such as cough variant asthma patients also often have dry cough symptoms. By oral albuterol mist, with the taking of dexamethasone or prednisone and other hormonal drugs for treatment. 4. Lung tumor: When the tumor presses and irritates the airway, it can cause dry cough. Targeted treatment should be carried out under the professional guidance of doctors through examination. Common lung cancer surgeries include local resection, lobectomy, palliative surgery, total pneumonectomy and so on. There are many causes of dry cough, so it is recommended to consult doctor in time to find out the cause of the disease and carry out standardized treatment under doctor’s guidance, and the specific medication should be in accordance with doctor’s prescription.