Itchy throat is a common symptom of some diseases, such as upper respiratory tract infection, allergic rhinitis or reflux pharyngitis. 1. Upper respiratory tract infection: acute inflammation of the upper respiratory tract caused by bacterial, viral infection or environmental factors, commonly acute pharyngitis, acute tonsillitis, etc., which can be manifested as dry and itchy throat, sore throat and other local symptoms, and even fever, weakness, nausea, vomiting and other systemic symptoms may occur. 2. Allergic rhinitis: The increase of nasal secretion due to the contact of allergens by susceptible individuals may cause itchy throat when it drips into the throat. 3. Reflux pharyngitis: The symptoms of itchy throat due to the reflux of gastric contents stimulating the throat are the accompanying symptoms of gastroesophageal reflux disease (GERD), and heartburn and coughing may also occur. If the above symptoms occur, it is recommended that patients go to the hospital in a timely manner to identify the cause of the disease and actively cooperate with the doctor’s treatment, do not make unauthorized diagnosis, blindly use drugs, so as not to cause delays in the disease.