What should I do if my child has a fever of 39 degrees that won’t go down?

A child’s fever of 39 degrees has not gone down, may be the upper respiratory tract infection and other causes, can be treated by drugs, physical and other methods.
Children with a fever of 39 degrees has not returned, may be caused by upper respiratory tract infection and other reasons, in order to avoid high fever caused by children with convulsions, should be given ibuprofen, acetaminophen and other drugs in a timely manner to reduce fever. At the same time, you can take ice packs, warm baths and other physical methods to lower the temperature.
You also need to go to the hospital in time for blood tests and C-reactive protein tests, if it is a bacterial infection then you need to use penicillin and other drugs; if it is a viral infection then you need to use oseltamivir phosphate and other drugs.
Children with a fever of 39 degrees has not gone down there may be other reasons, such as blood system diseases, it is recommended to go to the hospital in time for examination, to clarify the cause of the disease and actively symptomatic treatment. All of the above medications are recommended to be taken under the guidance of a doctor, and should not be used on their own.