A dry cough is a cough without sputum or with a small amount of white mucus sputum. There are many causes of dry cough, but in general they are divided into two areas: First: non-infectious diseases. Second: the initial stage of an infectious disease. However, if the dry cough is accompanied by itchy throat, the scope is greatly narrowed, focusing on the following three causes: 1, acute pharyngitis, this disease is common in winter and spring, usually caused by viral or bacterial infection. The specific how to do need to know whether it is a viral or bacterial infection, need to check the blood routine to make a preliminary determination, viral infection can be used ribavirin and oseltamivir. For bacterial infection, oral penicillin, first-generation cephalosporins, macrolides or quinolones are available. The above drugs are prescription drugs, and safe use of the drugs requires the guidance of a doctor. 2, acute attack of chronic pharyngitis, and acute pharyngitis treatment is basically the same, but need to pay attention to the usual care, drink more water, avoid exposure to dust, smoke and irritating gases, etc. 3. At the beginning of acute tracheobronchitis, anti-inflammatory treatment is needed, and hormones need to be given to relieve airway inflammation. The principle of how to do dry cough and throat itch is the need for specific analysis based on specific causes, dry cough and throat itch is a symptom, not a specific disease, only after dealing with the original cause, the symptoms can be effectively relieved.