When a baby has a fever, if an injection does not reduce the fever, it means that the medication is not very accurate. For example, if a fever caused by a viral infection occurs, the use of antibiotics for treatment is often incorrect, and antiviral drugs are needed for treatment. If a bacterial infection occurs, instead, antiviral drugs are applied for injection treatment, and the injection does not reduce the fever, so antibiotics are needed for treatment, such as ceftriaxone and cefoperazone. If you are not allergic to penicillin, you can also use penicillin-like drugs for the treatment of injections. If the baby’s fever does not subside despite the injection, there is also a lack of fluid, which can be treated with rehydration. Also need to identify the cause and carry out targeted treatment.