Children’s bacterial fever a few days well need to depend on the degree of infection and the type of pathogen, usually about 3 days can get better, if the situation is more serious, it may last about 7 days. Bacterial fever in children usually refers to the fever caused by bacterial infection, it usually takes about 3 days to get rid of the fever, if the bacterial infection is more serious, it may take about 7 days, you can use antibiotics to shorten the course of the disease, such as cefixime. If the infection is drug-resistant bacteria, the fever time will be prolonged, need to do pathogen culture and drug sensitivity test, and then use antibiotics that are sensitive to pathogens for treatment. In addition to the use of antibiotics, according to the fever temperature, if the temperature exceeds 38.5 ℃, you can use antipyretic medication treatment, such as ibuprofen suspension, pay attention to the side effects of the drug, such as nausea, vomiting, skin rash and other adverse reactions. It is recommended to use the medication under the guidance of a doctor, drink water diligently during the fever, and follow the doctor’s instructions.