There are many causes of dry cough. If it is caused by dry air, dust irritation and other physiological factors, no treatment is needed. If it is caused by chronic pharyngitis, allergic cough, reflux esophagitis and other diseases, you need to choose the appropriate treatment for the cause of the disease, including medication, general treatment and so on. 1. Physiological factors: If the humidity in the air is too low, or if there is too much dust in the environment, it will stimulate the pharynx to cause a dry cough, which is normal and does not need treatment, so just drink appropriate water and keep the room clean. 2. Chronic pharyngitis: chronic pharyngitis is a typical symptom of irritating dry cough, patients can follow the doctor’s instructions with compound borax solution, furacilin solution gargle, keep the mouth clean. Daily attention, quit smoking and alcohol, improve the work and living environment, avoid contact with harmful gases. 3. Allergic cough: For dry cough caused by allergic cough, patients should take dextromethorphan, pentoxyverine and other cough suppressants as prescribed by the doctor, and oral glucocorticosteroids as prescribed by the doctor, such as methylprednisolone, prednisolone, etc., to improve symptoms. 4. reflux esophagitis: the disease can also cause patients with dry cough, patients should follow the doctor’s instructions to take acid-suppressing drugs, such as omeprazole, lansoprazole, etc., can relieve the symptoms. The head of the bed should also be elevated on a daily basis to avoid acid reflux. There are many other causes of dry cough, such as cough variant asthma, upper airway cough syndrome nasal secretion reflux stimulation, cardiac insufficiency pulmonary stasis, etc. It is recommended that patients go to regular hospitals and cooperate with doctors for standardized treatment.