There are many reasons for a swollen throat and dry tongue, such as laryngitis, acute tonsillitis, viral colds and so on. 1. Pharyngitis: Pharyngitis can show swelling, congestion and pain in the throat, accompanied by a dry tongue and a foreign body sensation in the throat. 2. Acute tonsillitis: Tonsillitis not only shows enlarged tonsils, but also causes swelling of the throat and dryness of the tongue. Tonsillitis may cause high fever, which leads to dehydration, thus causing subjective dryness of the tongue. 3. Viral colds: Viral colds are upper respiratory tract infections caused by viruses. Generally there are symptoms such as fever, nasal congestion, runny nose, sneezing, coughing, dry throat, sore throat, etc. It can also be accompanied by systemic symptoms such as fever. Therefore, the tongue feels dry. There are many reasons why the throat is swollen and the tongue is dry, and it is recommended to go to the hospital in time to improve the examination after the symptoms appear, and take standardized treatment according to the doctor’s instructions.