Introduction: The term “tonsillitis” is not new to us. The tonsils are the first immune organ of the human respiratory tract, and when bacteria and viruses come, they are our little human guardians, protecting our health. However, once the body’s resistance decreases, bacteria and viruses can multiply here, leading to inflammation such as congestion, swelling and suppuration. Especially in children, it is easier to have recurrent tonsillitis in the winter season when the temperature is low. So, why are children’s tonsils often inflamed? What about tonsillitis in children? A. How important are tonsils to baby’s health? The tonsils are the first immune organ of the human respiratory tract, and their immune function is most active in pediatrics (especially 3-5 years old), located in the tonsillar fossa of the pharynx, which is what we usually call the “throat”, a position equivalent to the advance guard in a battle between two armies or the god of doors in mythology, which resists and destroys the pathogenic bacteria and viruses that enter from the mouth and nose. It resists and destroys pathogenic microorganisms such as pathogenic bacteria and viruses that enter from the nose and mouth. This is a very useful organ. But its immunity is also limited, when the number of inhaled pathogenic microorganisms is relatively large or virulent, it will cause inflammation of the tonsils, redness, swelling, pain, pus, etc. Why are children’s tonsils often inflamed? The tonsils are the “gateway” to the respiratory and digestive tracts, and when bacteria and viruses come, the tonsils take the brunt of it. Once a person’s resistance drops, the bacteria and viruses multiply here and the tonsils become inflamed. The inflamed tonsils are congested, swollen and pus-filled. Many small pus plugs appear on the tonsil sockets, and in severe cases, they are covered with pus moss. The frequent and repeated inflammation can form chronic tonsillitis, due to repeated inflammation makes tonsils hypertrophy, both tonsils almost touch together, like two doors blocking the pharynx. It can be said that the tonsils are the guardians of the baby’s health. What should I do if my child has tonsillitis? How should tonsillitis be treated? From most of the acute septic tonsillitis, the course of treatment is not less than a week, usually 8 to 10 days. During this period, it is crucial for the child to get enough rest. In clinical practice, children with tonsillitis who fail to get proper rest have even experienced extreme conditions such as fulminant heart failure. In addition to bed rest, parents can also let their children drink more water to replenish the water lost due to high fever and promote the excretion of toxins in the body; eat a light diet with more water and easily absorbed food, such as rice soup and fresh fruit juice; do not eat stimulating food and keep the air circulating in the room to reduce the chance of re-infection; meanwhile, children should take anti-inflammatory drugs under the guidance of the doctor and take them on time Stop the medication. How to prevent tonsillitis in life? 1. Children’s nutritional intake should be comprehensive, not too picky, so that the body will present a dynamic balance of health; 2. Weak children can also take vaccination to prevent tonsillitis by preventing respiratory tract infections.