Dry and sore throat may be caused by dry environment, chronic pharyngitis and acute pharyngitis. 1. Dry environment: If the patient is in an environment with less moisture and dry air, such as the fall and winter seasons or air conditioning often open indoor, it is easy to lead to dehydration of the throat, causing dryness and pain. 2. Chronic pharyngitis: Inflammation of the mucous membrane of the pharynx is obvious in patients with chronic pharyngitis, which can cause discomfort and foreign body sensation in the throat, and dryness and pain may also occur. 3. Acute pharyngitis: acute pharyngitis, tonsillitis, pharyngitis, etc. are also prone to cause dry and sore throat, and the pain symptoms will be more obvious. When a dry and sore throat occurs, patients need to avoid eating spicy and stimulating food, drink more water. It is recommended that patients go to the regular hospital for diagnosis and follow the doctor’s instructions to do the relevant treatment.