The prevention of tonsillitis includes the following aspects: first, dietary prevention, patients are advised to eat more vegetables and fruits, drink more warm boiled water, avoid spicy and stimulating foods, and avoid foods that are easy to catch fire, greasy, sugary, pickled and too salty. Eat more high-protein food can improve the body’s immunity, and more vitamins can also improve the body’s ability to resist the virus. Second, the prevention of daily life, usually to exercise regularly to improve the body’s immunity. Often wash your face with cool water to increase the resistance of the face to the virus, often use salt water to gargle, maintain oral hygiene, especially after meals and before going to bed, often clean your teeth to avoid tartar and other residual possibilities. Third, drug prevention, tonsillitis patients should actively treat laryngitis, to avoid repeated episodes of laryngitis induced tonsils. If the patient has pharyngeal discomfort, as soon as possible to give the pharyngitis of proprietary medicines, such as blue scutellaria oral solution, Pu Dilan anti-inflammatory oral solution and so on active treatment of pharyngitis, to actively treat the inflammatory lesions of the upper and lower respiratory tract such as rhinitis, sinusitis, bronchitis, pneumonia, etc., because the inflammatory lesions are very easy to induce the patient to develop tonsillitis.