Itchy throat may be caused by environmental factors, chronic pharyngitis, allergic pharyngitis and so on. 1. Environmental factors: such as living in a cold, dry climate, the work environment is dust, chemical gas pollution, long-term smoking and drinking and excessive consumption of spicy food, etc., the throat is stimulated by the phenomenon of itchy throat. 2. Chronic pharyngitis: itchy throat may be caused by chronic pharyngitis, chronic inflammation of the pharyngeal mucosa, submucosa and lymphatic tissues, mostly acute pharyngitis after repeated episodes of chronic; chronic inflammation of the upper respiratory tract stimulation and other reasons. There are various discomforts in the pharynx, such as foreign body sensation, itchiness, dryness and so on. 3. Allergic pharyngolaryngitis: The itchy throat is considered to be caused by allergic pharyngolaryngolaryngitis, caused by allergen stimulation of the mucous membrane of the pharynx of the allergic reaction of inflammation, which is chronic inflammation, inflammation, there will be a tickle in the throat, coughing and other symptoms. Patients with itchy throat usually need to pay attention to drink more water, avoid stimulating diet, and recommend timely medical attention to clarify the cause of the standardized treatment.