Sore throat is common in acute pharyngitis and acute tonsillitis. 1. Acute pharyngitis: when acute inflammation occurs in the mucous membrane of the throat, submucosal tissues and its lymphatic tissues, the mucous membrane becomes congested and edematous, and there will be sore and swollen pharynx, burning or dry throat, etc. Viral infections, bacterial infections, as well as environmental factors, etc., may cause inflammation of mucous membranes, and at the same time, irritating diets may cause the mucous membrane of the pharynx to become congested, resulting in swelling and pain. 2. Acute tonsillitis: most of the patients are caused by group A beta-hemolytic streptococcus infection. In addition, adenovirus and influenza virus may also cause acute tonsillitis, with localized symptoms of severe sore throat, mostly accompanied by swallowing pain, and the pain often radiates to the ear. It may be accompanied by systemic symptoms such as fever and chills. Patients with sore throat are advised to seek prompt medical attention and treatment after the diagnosis is clear.