Is fever a good thing or a bad thing? How to deal with it is more scientific?
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Dude, why do you have a fever?
Under normal circumstances, people's body temperature will be kept at 36.2-37.2℃, because the human body has its own temperature regulation system.
Skeletal muscle and liver are the main heat-producing organs, while skin is the main heat-dissipating organ. Under the instruction of the brain temperature regulation center, these organs cooperate with each other to control body temperature and maintain health in a dynamic balance.
But when the "heat source" appears, it will break the balance, leading to an increase in heat production, a relative decrease in heat dissipation, and a natural rise in body temperature.
There are two kinds of heating sources. First, exogenous heat sources such as bacteria, viruses, fungi and plasmodium invade the body, which will make the human body warm before or after death; Secondly, under the action of these fever activators, white blood cells in the human body will release some cytokines to resist foreign invasion, which will lead to an increase in body temperature, which is an endogenous heat source.
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Fever is sometimes a "good thing"
Fever is actually a self-defense mechanism of the human body, so it is sometimes a "good thing".
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Fever can remove pathogenic bacteria.
Fever itself is a process of eliminating viruses in the body and belongs to a self-treatment method.
When the virus invades the body, the body's immune system will "fight back". Raising body temperature means destroying the growth environment of viruses, bacteria, etc. And prevent the growth of these pathogens; At the same time, release immunocompetent cells, strengthen the bactericidal activity of phagocytes and neutrophils, effectively control virus infection, and even directly "kill" them.
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Fever can enhance the curative effect.
Fever can increase the effect of drugs, especially antibiotics, to a certain extent, and the effect is better when used in a fever state.
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Help diagnose diseases.
Fever is the early manifestation of many diseases, and sometimes it is more beneficial for doctors to diagnose diseases.
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Fever can also damage the body.
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Fever can affect the heart.
When you have a fever, because of the excitement of sympathetic nerve, cell metabolism increases, which leads to an increase in oxygen consumption, a faster heartbeat and faster blood flow, which will cause a great burden to heart patients. If the infection involves the heart, it may also cause myocarditis.
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Fever will affect the stomach.
Fever will also weaken gastrointestinal peristalsis, and the secretion of digestive juice will be relatively reduced, so the ability to digest and absorb things will be weakened, resulting in insufficient nutrition supply.
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Fever can damage the brain.
High fever also has a negative effect on the central nervous system. When bacteria and viruses invade the brain, it is easy to have headaches, vomiting, and may even induce meningitis and other diseases!
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Have a fever, what should I do?
How to judge whether to simply cool down physically or take medicine or go to the hospital when you have a fever? The key depends on your temperature and symptoms.
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Measuring body temperature
For fever, high fever should be avoided in principle. Therefore, it is particularly important to measure body temperature regularly.
Generally, take your temperature before breakfast, before lunch, at 3 pm and before going to bed. When the oral temperature is higher than 37.3℃ and the underarm temperature is higher than 37℃, it is also a fever stage.
Generally speaking, if the body temperature does not exceed 38℃ and the spirit and appetite are not affected, you can put ice cubes on your forehead to relieve discomfort.
However, if the body temperature is higher than 38.5℃, or fever persists, or accompanied by rash, severe headache, joint pain and spasm, you should seek medical attention immediately.
Tip: There are often "earth works" that can reduce fever by "covering your sweat", which is actually unscientific. Sweating is the result of reducing fever, not the process. Sweating can not only reduce fever, but sometimes even lead to metabolic disorder and functional failure. If you have chills, you can put on more clothes, but don't let your body temperature get too high!
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Selection of antipyretics
When the body temperature is too high, if there are no other special symptoms, you can also choose antipyretics to reduce the fever.
① Paracetamol
It has quick curative effect and few side effects, and children can take it. But the action time is short, generally lasting only 4 hours.
② ibuprofen
The curative effect is stable and can be used by children over 6 months, but it may cause gastrointestinal discomfort or rash.
③ Aspirin
It takes effect quickly, but it stimulates the gastrointestinal tract greatly, which may cause various complications. Not recommended.
Tip: Acetaminophen and ibuprofen are commonly used in children with fever. Remember to refer to the instructions or consult a doctor for different specifications.
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Drink plenty of water to supplement nutrition.
When you have a fever, your body will lose a lot of water and you will be thirsty more easily. Even the urine volume will decrease and the urine color will turn yellow. Therefore, if you replenish water in time, it will also help to cool down.
In addition, adequate nutrition also plays a very important role in resisting virus immunity. Even if you have a bad appetite, you should eat properly