The child’s bacterial infection fever is still more than 39 ℃ for six days, may be typhoid fever or lobar pneumonia and other diseases caused by symptomatic treatment, causative treatment and supportive treatment can be taken. 1. Symptomatic treatment: the child bacterial infection fever for six days or more 39 ℃, can follow the doctor’s instructions to use ibuprofen granules, acetaminophen and other drugs for antipyretic treatment, but also with physical cooling, such as the head of the antipyretic paste, and so on. 2. Causal treatment: fever above 39℃ for 6 days belongs to retained fever, which is commonly found in typhoid fever, lobar pneumonia and so on. It is necessary to actively treat the original disease to achieve the purpose of lowering the temperature. (1) Typhoid fever: Typhoid fever is an intestinal infectious disease, and persistent fever is one of the typical clinical symptoms. Patients can be treated with drugs such as azithromycin. (2) Lobar pneumonia: mainly caused by pneumococcal inflammation, the typical performance of high fever, chills and so on. Clinical often use penicillin, cefuroxime, doxycycline and other drugs for treatment. 3. Supportive treatment: let the child rest more, timely supplementation of water and electrolytes, accelerate the metabolism at the same time to prevent dehydration or electrolyte disorders. If your child’s fever does not go down due to bacterial infection, there may be other reasons, so it is recommended that you consult a doctor in time, and under the guidance of a professional doctor to carry out the relevant examinations and treatments.