There are many reasons for the swelling and pain in the throat, such as acute purulent tonsillitis, acute epiglottitis, acute mucous membrane injury, pharyngitis and so on. 1. Acute purulent tonsillitis: acute purulent tonsillitis attack when b-hemolytic streptococcus infects the tonsils, which can cause swelling and pain in the throat, high fever and other phenomena, so there will be a sore throat and pain in swallowing. 2. Acute epiglottitis: the disease can cause epiglottis mucosa hemorrhage, edema, epiglottis lifting difficulties, inflammation aggravation can be manifested as sore throat pain swallowing pain. 3. Mucosal injury: Eating hot food can cause mucosal injury, inducing ulcers, which can lead to sore throat and painful swallowing. 4. pharyngitis: acute pharyngitis will not only lead to sore throat and pain in swallowing, but also will show foreign body sensation in the throat, itchy throat, dryness and other phenomena. The causes of sore throat and swallowing pain are very many, after the symptoms are recommended to go to the hospital in a timely manner to improve the examination and clear diagnosis, follow the doctor’s instructions to standardize the use of medication and to take standardized treatment, do not ignore the symptoms, to take it lightly.