Itchy throat and cough may have the following causes: 1. Allergic pharyngitis, the most common clinically, is mainly caused by the patient’s throat inhaling allergens or eating allergic food, resulting in an allergic reaction in the throat, the patient can have an itchy throat, a dry cough, no phlegm in the throat, the condition can occur repeatedly, and when the concentration of allergens is high, the number of coughs becomes more frequent. 2. Some patients have bronchitis, pneumonia and other Some patients have chronic rhinitis, sinusitis and other related diseases, and long-term nasal discharge enters the throat and stimulates the mucous membrane of the throat, resulting in an irritating cough. Some patients have reflux gastritis, reflux esophagitis and other related diseases, when the patient is lying in bed or lying down, stomach acid and other reflux into the pharynx, stimulating the pharynx to itch and other uncomfortable symptoms, the patient can also appear irritating choking cough and other related symptoms.