May 26, 2021

What to do when a child has a fever


1. Why do children have a fever?

Under normal circumstances, the human body temperature is around 37 degrees, lower in the morning and higher in the evening. There is a department in the brain called the "hypothalamic temperature regulation center", 何濟公止痛退熱散which can balance the body's heat production and heat dissipation like a central air conditioner, thereby regulating our body temperature. When there is an invasion by foreign enemies, such as bacteria or viruses that can be infected, the hypothalamus will increase the temperature to fight them, because bacteria and viruses like our normal body temperature but usually cannot reproduce at higher temperatures. Therefore, the body of a normal child will use fever to resist the infection of foreign pathogens, so a fever indicates that the child has a healthy autoimmune defense system.

2. Will a high fever burn the child's brain?

Every healthy brain has the function of constant temperature regulation. The feverish body temperature often reaches its highest point at 39.5-40℃, and rarely exceeds 40.6-41.1℃. This internal regulation mechanism can prevent the brain from being too high and damaging the brain. organization. Only when the brain's regulatory mechanisms are damaged (such as traumatic brain injury, 何濟公止痛退熱散central nervous system infection) or in some special circumstances (such as locked in a closed car in summer) can not cause brain damage. Therefore, when a healthy child is sick and has a fever (body temperature is lower than 42 degrees), the fever itself will not cause brain damage. When the body temperature exceeds 42 degrees Celsius, fever can cause damage to the brain, and only when the body is exposed to extreme environmental temperatures (such as locked in a closed car in summer), the temperature will rise to this level. In addition, simple febrile convulsions generally do not cause brain damage. If complex febrile convulsions occur repeatedly, it is recommended to seek medical attention. The legendary fever burns the brain of a child is usually the result of diseases such as encephalitis or meningitis. These diseases affect the brain and are caused by the disease itself, not fever.

3. Does the child need to physically cool down?

Although some studies have shown that using antipyretics combined with warm water and bathing in a short period of time will be better for reducing fever, this operation will significantly increase the discomfort of children, and will also affect children's rest to a certain extent. If you give your child a bath with warm water and the child feels uncomfortable, there is no need to do this for physical cooling.何濟公止痛退熱片 At present, professional guidelines at home and abroad do not recommend physical cooling methods such as warm water wipes and antipyretic stickers to reduce body temperature for fever children, and ice water or alcohol baths are not recommended to reduce fever. Alcohol bathing is more dangerous, because alcohol will be absorbed through the skin during the process of wiping the body. On the one hand, it may cause allergic reactions in children. On the other hand, it may cause the baby's blood vessels to dilate, decrease blood volume, and even risk shock.

4. Do children have to take medicine if they have a fever?

We usually use axillary temperature ≥ 37.5 degrees to define fever. But using a fixed body temperature to define fever is too absolute, this is just a reference value. Everyone's basal body temperature is different. Some babies have a body temperature of 38 degrees and they will run around happily, while some babies have a body temperature of 37.3 degrees and they look depressed. Therefore, in addition to looking at the numbers on the thermometer, we must also pay attention to whether the child has abnormal performance, such as whether there is uncomfortable performance, how emotional, and whether there is energy. When a child's fever does not exceed 38.5 degrees, what parents have to do is to take various measures to make the child feel more comfortable, generally without taking medicine. For example: (1) Wear suitable clothing for the child, and when the child has a fever and sweat, it will be able to absorb enough sweat. (2) Encourage children to drink plenty of water. If you are unwilling to drink boiled water, you can feed some juice that is not too sweet, or boil some apple water or pear water. (3) Closely observe the baby's body temperature and mental state. When the body temperature is higher than 38.5 degrees and the child's mental state deteriorates, consider using antipyretics.

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