Always occasionally dry cough a few times may be a physiological cough reflex, may also be the manifestation of respiratory diseases, need to clarify the cause of the disease, the cause of the treatment, such as bronchitis caused by bronchitis infection, pneumonia, etc., can be oral azithromycin and other treatments; or due to the respiratory tract dryness caused by a dry cough, can be relieved by drinking plenty of water, to keep the respiratory tract moist and so on. Coughing is a protective reflex of the human body, through the coughing action can clean up the trachea, throat parts of the foreign body. If it is only occasional dry cough, it may be related to dry climate, often do not drink water, talk too much and other physiological factors. At this time, no medication, mainly by changing daily behavioral habits to regulate, such as drinking more water every day, less use of the voice, adhere to a light diet, avoid drinking and smoking, etc., the symptoms of dry cough will naturally improve. Occasional dry cough may also be the manifestation of bronchial asthma, chronic bronchitis, chronic pharyngitis, etc., usually associated with contact with allergens, by bacteria, viruses, mycoplasma, etc., at this time need to pay close attention. In this case, patients are advised to take medication as soon as possible. If it is bronchitis and pneumonia caused by mycoplasma infection, usually accompanied by sore throat, dry throat, cough aggravation symptoms, the need for anti-infection treatment, choose azithromycin, levofloxacin and other antibiotics. If it is an asthma attack, accompanied by chest tightness, shortness of breath, croup, etc., it can be treated with terbutaline, montelukast sodium and other drugs. If there is always a dry cough, it is recommended to consult a doctor and follow the doctor’s instructions for examination and treatment and conditioning. The above medications should be used under the supervision of a physician.