It's dangerous when the temperature is above 40℃, but it's not at 37~38℃. Generally, a fever is at this temperature, and it will be cured soon if the doctor takes medicine. A fever is only one of the symptoms of the disease, not all of it. Usually only see the appearance of the disease, such as fever, vomiting, cough, and panic. I don't know that doctors treat diseases, the first thing is the discovery of the cause and the method that can be completely cured, not just for reducing fever. Remember not to blindly ask doctors to reduce fever and treat fever symptoms, but to follow the doctor's advice, accurately find out the real cause of fever and prescribe the right medicine. Fever is nothing more than a traditional idea that fever will burn your brain. In fact, a high fever itself will not make the brain worse and the intelligence worse. In the past, there was such a misunderstanding because people did not clearly distinguish the reasons behind a high fever.

In fact, only diseases such as encephalitis and meningitis, in which the brain itself is destroyed by viruses, will damage the intelligence or sensory function, instead of burning people stupid and deaf with fever. A mild viral infection may also have a high fever of 40℃, so don't be too alarmed.

According to statistics, no matter what causes the fever, the body temperature rarely exceeds 4 1℃. If it exceeds this temperature, the possibility of bacterial meningitis or septicemia is relatively high, so we should be especially vigilant. As for the high temperature limit that brain cells can tolerate, it is 4 1.6℃. Beyond this limit, protein of brain cells will deteriorate due to high temperature, causing irreparable damage, but this extreme high temperature rarely accompanies diseases.

Because fever itself is not harmful, it has long been controversial whether it is necessary to reduce fever. Scholars who advocate no need to reduce fever diagnose that fever is a normal immune response that can help white blood cells fight bacteria. Analyzing the form of fever can help diagnose the cause, but blindly reducing fever is misleading.