I. Proper understanding of fever Infectious diseases are the main cause, and the temperature is not necessarily proportional to the severity of the disease. Fever is one of the most common symptoms in children and is the most common reason for emergency room visits in children, and is also the most disturbing thing for parents. The causes of fever are complex. Infectious fever is the main cause of fever in children, most commonly respiratory infections such as upper respiratory tract infections, but some children may have non-infectious diseases, often accompanied by joint swelling and pain, such as juvenile rheumatoid arthritis. Infectious fever can be seen in several systems, including respiratory system, digestive system, nervous system, urinary system, etc. Most of these fevers are respiratory system infections, and their fever duration is usually 3-5 days, including epiglottitis, bronchitis, and pulmonary infections, etc. Among them, epiglottitis, bronchitis and mild pneumonia can generally be treated on an outpatient basis and have a better prognosis. Fever due to severe pneumonia and neurological infections often requires hospitalization. Fever can be considered as an immune response of the body, therefore, the temperature is not necessarily proportional to the severity of the disease. If the fever is not accompanied by dehydration or central nervous system infection, convulsions, etc., generally fever will not burn the brain. Second, antipyretic treatment: medication and physical cooling For fever need to identify the reasons behind the fever, for fever symptoms, not purely antipyretic treatment, need to determine clearly under the guidance of a doctor the source of infection, infection site, fever treatment includes medication and physical cooling. The choice of antipyretic drugs is generally considered to be necessary for children with body temperature over 38.5℃ and for children with previous history of febrile convulsions, whose body temperature may exceed 38.0℃. Commonly used drugs include ibuprofen suspension, acetaminophen, etc. The same drug (referring to the above two) is generally appropriate to be taken orally no more than four times in 24 hours, that is, often at intervals of 6 hours, for oral ibuprofen suspension or acetaminophen, the antipyretic time can be maintained for more than 6 hours, considering the existence of superimposed effects of antipyretic drugs, it is generally recommended to use the same drug antipyretic treatment, such as antipyretic maintenance time is short. The dose of the drug should be paid attention to, at present, the instructions of the two drugs often choose the minimum dose, clinical observation often have patients with fever difficult to subside or maintain a short time, this situation should be adjusted under the guidance of the doctor drug dose, such as still high fever difficult to subside, you can alternate between the two drugs, the interval is best more than 2 hours, some parents in children with high fever anxiety, a short period of oral multiple antipyretic drugs can be due to drug Some parents are anxious when their children have high fever. The Chinese patent medicine Antelope Jiaojiao Oral Liquid should not be used as the first-line antipyretic drug for high fever. Although some children have fever of more than 38.5℃, they do not have obvious symptoms of systemic toxicity, sweating and warm extremities, so they can take warm water orally and do not necessarily need antipyretic drugs. Physical cooling: cold water baths and alcohol baths do not conform to the physiological mechanism of the human body and are not recommended. Hot water or herbal decoction rubbing bath is appropriate for the extremities, pay attention to seasonal factors and avoid getting cold again. Dehydration, shortness of breath and other conditions should not be treated by rubbing bath to avoid aggravating the irritable symptoms of the child, etc. Third, the treatment: must need intravenous rehydration treatment fever is recommended to have the conditions can be tied finger perfect blood routine, CRP and other tests to initially understand the original infection, for viral infection, often choose Chinese medicine treatment, some bacterial infection may need to add antibiotic treatment. At present, many parents have the misconception that fever can be reduced by playing rehydration fluids, in fact, it is not necessary to inject orally, and it is not necessary to use intravenous drugs to inject orally. Fever accompanied by frequent coughing, shortness of breath or shortness of breath should be noted to further improve the chest X-ray examination. Diet and clothing for fever Fever is associated with reduced secretion of digestive enzymes, so there is basically a poor appetite, etc. At this time, a light diet should be the main focus, avoiding fatty and spicy food. However, in case of heat stroke or warm limbs, sweating, or oral antipyretic drugs for half an hour, the child is in a state of heat dissipation, so attention should be paid to loose clothing and blankets, instead of excessive clothing and blankets because of poor heat dissipation, which makes the fever difficult to subside. V. What situation needs to be reviewed: Due to the existence of hyperthermia phobia in some parents, it is not uncommon to see the doctor 4 to 5 times in 24 hours, most cases are caused by parents’ one-sided cognition or doctors’ busy schedule without clear explanation, which can be avoided.