When people say anti-inflammatory drugs, they mostly refer to antibiotics, but in fact, antibiotics are used to indirectly reduce inflammation by killing pathogens such as bacteria. The specific duration of antibiotic use is related to the type of infection, the severity of the infection and the individual situation, and cannot be generalized. For general acute bacterial infections, symptoms will gradually resolve after about 3 days of oral antibiotics, and it is usually recommended to continue consolidation for 3 days after the fever has subsided. For patients with more severe symptoms and more complex types of infections, intravenous antibiotics may be required, e.g., antibiotics for pneumonia for about 2 weeks; antibiotics for bacterial liver abscesses can be given for up to 1 gm or longer. In case of poor efficacy, the corresponding antibiotic needs to be selected according to the medical advice based on the drug sensitivity test. Antibiotics should be used in adequate doses and courses, otherwise bacteria are very likely to develop resistance, making clinical treatment difficult.