6-year-old children with high fever first need to clarify the cause of fever, if it is viral, bacterial and other pathogenic vitamin infections, you can use ibuprofen and other fever-reducing drugs, viral infections can be self-healing, bacterial infections need to take amoxicillin and other antibiotics; such as non-infectious fevers, go to the hospital in a timely manner to find out the cause of the disease. The causes of fever in children can be divided into infectious fever and non-infectious fever. 1. Viruses, bacteria and other pathogenic microorganisms caused by infection, after the cause is clear, you can use ibuprofen, acetaminophen and other antipyretic drugs to treat the cause of the fever, and at the same time to deal with the cause of the disease. If it is a viral infection, it can be cured by itself, and bacterial infection can be treated with antibiotics such as oral amoxicillin. 2. Non-infectious fever, such as leukemia, systemic lupus erythematosus, hemolytic reaction, malignant tumors, autonomic dysfunction. The cause of the disease is complex, and it takes a long time to make a clear diagnosis, and we should not blindly take antipyretic drugs to cover up the condition and delay the diagnosis. You should go to the hospital in time to find out the cause of the disease. When encountering children with high fever that does not go away, it is recommended to go to the hospital in time, to identify the cause of the disease and then treat it, do not blindly take fever-reducing drugs.