Tonsillitis is contagious, the disease is an infectious disease, mostly occurring in adolescents, the pathogen can be transmitted through droplets, direct contact and other ways. The causative agent of tonsillitis is mostly hemolytic streptococcus, but it can also be mixed with viral infections, such as influenza virus and adenovirus. The main symptoms are fever, chills, sore throat, visible pharyngeal congestion, enlarged or congested tonsils, and partially visible purulent secretions. Blood routine mostly suggests elevated leukocytes and neutrophils, and C-reactive protein and blood sedimentation may also be elevated. Treatment is mainly anti-infection, such as oral cefuroxime, penicillin, etc., fever can be given to antipyretic and analgesic drugs, such as ibuprofen, acetaminophen, etc., and drink more water to promote metabolism, and avoid eating cold and fried food. Surgery is feasible for repeat offenders. Tonsillitis acute stage people should pay attention to isolation, it is recommended to go to the hospital, under the guidance of the doctor treatment.