Dry and sore throat may be caused by bad habits, acute pharyngitis, acute tonsillitis and throat tumor. 1. Bad habits: If you are in an environment with a dry climate and often eat spicy and irritating food, you will experience dry and sore throat. 2. Acute pharyngitis: the mucous membrane of the throat is congested, vasodilatation and inflammatory exudation, which can make the mucous epithelium as well as mucous membrane edema, accompanied by inflammatory cell infiltration, resulting in a dry, burning throat, and sometimes there may be a sore throat as well as a cough, and a sore throat is more pronounced in the empty pharynx. 3. Acute tonsillitis: Acute tonsillitis can show sore throat, dry mouth, pain in swallowing, fever and so on. 4. Pharyngeal tumor: When suffering from pharyngeal tumor, it may be accompanied by sore throat, as well as burning sensation, dry mouth and other symptoms at different periods of the tumor. When patients have the symptoms of dry and sore throat, they should go to the hospital in time to clarify the cause of the disease and get proper treatment under the guidance of doctors.