1.Will a fever burn the brain? A fever below 41℃ will not cause direct damage to the patient’s brain or other organs, but an extremely high fever can sometimes cause abnormalities of varying degrees of consciousness. It is commonly said that fevers that burn children’s brains out are due to diseases such as encephalitis and meningitis, and that fever is only one of the symptoms of these diseases. Children over 6 months of age should not use the height of the fever temperature alone to predict or judge the cause of the fever and the severity of the illness, but a temperature of ≥ 38°C in infants <3 months of age or ≥ 39°C in infants 3-6 months of age suggests the possibility of a serious bacterial infection or illness. 2.What are the benefits of electronic thermometers compared to traditional mercury thermometers? Is the measurement accurate? If regularly calibrated, the temperature measured by electronic thermometers is no different from that of mercury thermometers. But mercury thermometers are not suitable for general household use, mainly because of the risk of mercury poisoning and environmental pollution caused by the accidental breakage of mercury thermometers. Currently, Taiwan has stopped using mercury thermometers to reduce accidental injuries and environmental pollution. Electronic thermometers are suitable for general household use, but some hospitals in China may still use glass mercury thermometers, which may lead to inaccurate measurement results if the mercury column of the thermometer is not thrown below 35°C before measuring the body temperature. Electronic thermometer should pay attention to the battery power problem, if found that the power is not enough to replace before use, otherwise the measurement results may be inaccurate. 3, touch the child's skin to see if there is a fever method accurate? The method of feeling the skin to determine whether there is a fever is very inaccurate, so when a child is sick, you must use a thermometer to correctly determine whether the child has a fever. According to foreign studies, mothers can only correctly determine 74% of children with fever by hand, while caregivers can only determine 42% of children with fever. If you feel a fever, it is recommended to take the temperature and use the measured temperature. If you are unable to monitor the temperature due to various factors, you should explain the situation to the doctor during the consultation, and the doctor should pay attention to the parents' feeling that the child has a fever. 4.Why do children have cold hands and feet when they have a fever? When the inflammatory response causes the temperature locus of the inferior colliculus of the brain to rise, the normal body temperature recognized by the brain will exceed 38°C. If the temperature does not reach the set temperature, the child's hands and feet will be cold. If the body temperature does not reach the set standard, the patient will feel cold (chills) and may involuntarily experience muscle tremors (chills) to increase heat and vasoconstriction of the extremities to reduce heat loss, so the phenomenon of cold hands and feet will occur. If your hands and feet are cold when you have a fever, it means that you are in the period of rising body temperature and your body temperature will continue to rise. At this time, there is often fatigue (children may be very clingy, asking to hold, etc.), muscle pain (children may be crying and restless, irritable, etc.), pale skin, feeling cold or chills (shivering), etc. 5.Is there any benefit of fever to human body? Many studies have shown that a moderate fever can improve the effectiveness of the immune system, but some studies have also shown that antipyretic drugs can suppress the immune response, so in animal experiments with large amounts of antipyretic drugs can increase the mortality rate of sepsis. In humans, fever is a protective instinctive response when we are sick, aimed at strengthening our resistance to disease. Fever can inhibit the growth and reproduction of certain germs, plus the immune function is enhanced when fever is present, which helps to remove pathogenic bacteria and promote recovery from disease, but the specific situation should be analyzed and treated accordingly when necessary. 6.Is there any harm to the body from fever? Fever generates excess heat, so it increases oxygen consumption, carbon dioxide production and heart output. In addition, some children may develop fever between the ages of 6 months and 6 years due to physical factors that can lead to febrile convulsions. At present, febrile convulsions mostly occur between 3 months and 5 years of age, during the first onset of fever or during a rapid rise in body temperature, with the first febrile convulsions usually occurring between 6 months and 3 years of age, with an average of 18-22 months, and the majority of them not occurring again after 5 years of age. The overall prognosis for febrile convulsions is good, and there are two clinical categories: simple febrile convulsions and complex febrile convulsions.