Influenza B, a relatively common infectious disease in clinical practice, can multiply in the body if not controlled effectively after the influenza virus enters the body. In addition, it can be spread through a variety of ways, bringing serious effects to patients, so it needs to be controlled in a timely manner. The main treatment methods are as follows: 1. General treatment: Patients should be isolated, rest in bed, drink more water, give liquid and semi-liquid diet, balanced nutrition, and supplement certain vitamins. In addition, after each meal, drink warm water and rinse the mouth with light salt water to keep the mouth clean so that the virus will not remain in the mouth or continue to infiltrate; 2, antiviral treatment: it is generally required to start anti-influenza virus medication as early as possible within 36-48 hours to reduce the amount of virus detoxification, inhibit the replication of the virus, reduce clinical symptoms, and prevent further spread of the virus to the lower respiratory tract, which eventually leads to pneumonia It also prevents further spread of the virus to the lower respiratory tract, which may lead to complications such as pneumonia. However, the blind use of some antibiotics should be avoided, and treatment with amantadine, methamantadine and neuraminidase inhibitors can be chosen under the guidance of doctors. In addition, Chinese and Western medicine can be combined to improve the therapeutic effect, such as the discriminatory use of Banlangen, Lianjia and Yinhua.