Children’s bacterial fever of 40 degrees may be related to bacterial infectious bronchitis, pneumonia, etc., and can be treated with general treatment, medication and other methods. 1. General treatment: when children have a fever, they can drink a lot of water to strengthen the metabolism and help reduce the fever, in addition to physical methods such as placing antipyretic patches on the head or rubbing warm water to lower the temperature, which can effectively help the body dissipate heat. 2. Drug treatment: (1) antipyretic drugs: children with a fever of 40 degrees, in the physical cooling at the same time, but also need to use acetaminophen, ibuprofen and other drugs under the guidance of the doctor for cooling treatment. (2) anti-bacterial infection drugs: fever caused by bacterial infection, also need to cooperate with anti-infection drug treatment. You can follow the doctor’s instructions to use ceftriaxone, amoxicillin and other drugs to fight infection. After the results of the drug sensitivity test come out according to the results of the choice of sensitive drug treatment. There are many causes of bacterial fever 40 degrees in children, such as bronchitis, pneumonia, etc. It is recommended that parents take their children to the doctor as soon as possible to clarify the cause of the disease and then actively carry out targeted treatment to prevent further aggravation of the condition.