Bacterial infections and fever can be treated with antibiotics, but you need to choose the appropriate antibiotics according to the specific needs of the disease, such as oral antibiotics can be chosen for milder conditions. 1. The type of antibiotic: If the infection is purulent, you can choose cephalosporin or penicillin antibiotics, if you are allergic to these two types of antibiotics, you can change to erythromycin, such as roxithromycin or azithromycin. 2. The use of antibiotics: if the condition is not too serious, you can choose oral antibiotics; if the condition is more serious, you can choose intravenous antibiotics; if the condition is very serious, you can also choose oral and intravenous antibiotics synchronization. In addition, the application of antibiotics, must be under the guidance of specialists, must have the appropriate indications before the use of antibiotics, and according to the results of the drug sensitivity to adjust the drug program, do not abuse antibiotics, to avoid affecting the health of the body.