The throat is medically referred to as the pharynx, and its dry itch and cough may be caused by chronic pharyngitis, upper respiratory tract infection, reflux esophagitis, etc. The specific analysis is as follows: 1. Chronic pharyngitis: It is generally more common, mostly due to chronic inflammation formed by long-term stimulation of the environment, air pollution, allergies and other factors, mostly manifested as a dry and itchy throat, cough and no phlegm. If chronic laryngitis does not ease or worsen for a long time, this time you need to visit a hospital for examination to rule out other organic lesions. 2. respiratory tract infection: It is also very common in clinical practice, as the respiratory tract is attacked by bacteria and viruses, which can lead to respiratory tract infection symptoms, such as dry and itchy throat and cough, often accompanied by fever. 3. reflux esophagitis: Patients will have symptoms such as dry and itchy throat and cough. It is mainly caused by the refluxed gastric juice and food irritating the throat.