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Almost everyone has the unpleasant feeling of being "bitten" by mosquitoes, in fact, it should be said that they are "stung" by mosquitoes. Mosquitoes can't open their mouths, so they won't bite on the **, it actually uses 6 needle-like structures to pierce people**, these short needles are the center of the mosquito's edible mouthparts.
These short needles suck human blood in the same way that they draw blood; The mosquito also releases saliva containing anticoagulants to prevent blood from clotting, so that it can feast peacefully. When the mosquitoes are full of food and drink and float away, all they leave behind is an itchy lump.
However, the itchy sensation is not caused by a short needle pricking or chemicals in the saliva. We feel itchy because the body's immune system releases a protein called histamine to fight foreign substances, and this immune response triggers an allergic reaction at the bite site. Histamine causes swelling of the tissues around the bite when blood flows to the bite site to speed up tissue recovery, and the intensity of this allergic reaction varies from person to person, with some people having a more severe allergic reaction to a mosquito bite.
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I'm dizzy! We're the same! Me too, I was bitten 17 bags today and caught 5 of them, but it didn't take long for the bags to disappear, which was weird, but it was also very cool! Ha ha.
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It's not good to be able to go down by yourself?。。。 If you don't bend it, it will go down naturally.
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When summer arrives, mosquitoes breed, especially during the rainy season, when the larvae of mosquitoes - multiply in large numbers in large waters. Mosquito bites make it difficult to sleep and can also spread disease. However, it is not easy to completely eradicate mosquitoes, and mosquito bites are inevitable.
When a mosquito bites, it secretes an organic acid, formic acid, in the mouthparts of the mosquito, and its chemical composition is HCOOH. This substance can cause muscle acid, which can be applied with a strong soap in the home to quickly relieve itching. The reason is the sodium salt of the higher fatty acids of soap.
Such as: C17H35COONA. The sodium salt of this fatty acid is alkaline when hydrolyzed.
Aqueous solution containing OH-formic acid contains H+:
Because the OH- in the soapy water is neutralized with the H+ of formic acid to form H2O, it can quickly eliminate the itch.
After being bitten by mosquitoes, do not scratch indiscriminately, otherwise it is easy to cause bacterial infection. Experts recommend that the following methods be used to relieve itching:
1.After being bitten by mosquitoes, ordinary people will have symptoms such as redness, swelling, itching, and pain, which can be relieved by alkaline substances, such as ammonia to relieve itching, or soap dipped in water to apply to the redness and swelling, which can relieve itching within a few minutes.
2.If the bite is very itchy, you can flick it with your fingers first, and then apply flower water, wind oil essence, etc.
3.Apply or brew the itchy area with salt water, which will soften the bump and can also effectively relieve itching.
4.The sap from the aloe vera leaf can be used to relieve itching. When it is red, swollen and itchy after being bitten by a mosquito, you can cut a small piece of aloe vera leaf, wash it and break it, and rub it a few times on the red and swollen area to reduce swelling and relieve itching.
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There is a good thing to share with you, it is particularly effective, the combination is not high, it is called mosquito coil!
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Toilet water should work out.
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Don't worry about this, it'll be gone in a week or so, don't touch it with your hands.
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Apply some cooling oil every day, it will relieve the itch, and it will be better for about a week.
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Rub some infinite cream, the effect is very good.
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It may also be eczema, just apply some dermatitis flat.
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Flea bites, home or animal contact, etc. Change the sheets and quilts, and spray the medicine in the room. These pimples are not easy to get rid of, and can be blown by a hair dryer until they are no longer itchy.
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It's eczema and rush to the hospital for medical attention.
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How can it be a few minutes gone A lot of bags that are similar to mosquito bites, such as chilblains, are more painful than mosquito bites, and some may be mild allergies, or fire or something, try not to scratch them, just fast.
Why does a mosquito bite swell? In fact, we are not "bitten" but "stabbed". The mosquito's blood-sucking tool is in the shape of a six-edged needle, which works similarly to a needle used to draw blood.
The mosquito also releases saliva containing anticoagulants to prevent blood from clotting, so it can feast peacefully. When the mosquitoes are full of food and drink and fly away, all they leave behind is an itchy lump. "Since mosquitoes contain exogenous substances in their saliva, the body's instinctive protective mechanism will destroy these substances, resulting in a very mild inflammatory reaction, which can also be said to be an allergic reaction.
Therefore, the bag left after being bitten by a mosquito is medically known as insect bite dermatitis. **The head of the department said that the size and duration of each person's bag after being bitten by mosquitoes are different, which is caused by the severity of allergies. Some people just have a red dot, while others have rashes, blisters and even induration.
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In mosquito bites, it is mainly the female mosquito that inserts her mouth into the blood vessels, and its saliva or venom enters the human body, while the mosquito sucks the blood of the person.
During this period, the diseases transmitted by mosquitoes themselves will make the human body produce antibodies, and different people, with different blood types, different constitutions, and different immunity.
Therefore, the specific situation of the ** inflammation is also different, so that the small red dot will disappear quickly, and the next day I don't even know that a mosquito has bitten me; And some people have to worry about the itchy skin and the big bag that does not subside.
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The constitution is different, and the acidic constitution dissipates slowly. Alkaline constitution dissipates quickly.
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The formation of red envelopes after being bitten by mosquitoes is actually an allergic reaction of the human body to the saliva of mosquitoes, some people are lighter, and some people are heavier. If the reaction is relatively mild, the red envelope may have itching in a short time, and the allergic reaction will disappear after about 10-20 minutes, and the red envelope and itching will be significantly reduced. If the allergic reaction is severe, it may cause the red envelope to be more severe, and the itching and even pain will last for a long time, and the mosquito bite will be repeated after a few days, and the previous bite site will have a delayed allergic reaction again.
Therefore, after being bitten by mosquitoes, anti-itching drugs can be used locally, and if there is a more serious allergic reaction, anti-allergic drugs such as loratadine or cetirizine can be taken orally to help relieve symptoms. When the mosquito bites itself, the mosquito can't actually open its mouth, but uses its own six-branch needle-like structure to pierce the human body's **, this mosquito short needle is actually the organ that the mosquito uses to suck. In addition, when mosquitoes bite themselves, they will also release a saliva containing blood clotting agent to prevent their own blood from clotting, so that mosquitoes will have the opportunity to bite themselves and can also suck their own blood very safely.
After the mosquito is gone, an itchy lump will appear in the human body.
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The disappearance time of the red dot after being bitten by a mosquito mainly depends on the degree of the body's response to the removal of abnormal proteins and adaptation to this invasion reaction, and most of them will be automatically eliminated in 4 to 5 days. Mosquitoes inject their saliva into a person's body during the time they suck blood to prevent the person's blood from clotting.
The saliva of mosquitoes also contains a certain amount of formic acid, which is equivalent to a foreign protein for the human body, so it will naturally cause the body to produce an immune response to resist the invasion of abnormal proteins, so the red dot is formed. If a red spot appears after being bitten by a mosquito, you can use an anti-itching agent or water agent to stop the itching sensation. For example, toilet water, cooling oil, wind oil essence, etc., but it still takes 4 to 5 days to completely eliminate them.
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Autoimmunity is insufficient, and any mosquito bite takes a long time to heal. Exercise a lot, or talk to your doctor about what medications you can use to boost your immunity. I remember as if albumin was fine.
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When the weather is hot, there are more mosquitoes, especially in the summer when the night is the most mosquitoed, and people have experienced the pain and itchiness of being bitten by mosquitoes. So why do some people get bitten by mosquitoes and get a big bag, while others have a red dot? In fact, it depends on the condition of a person, as well as the type of mosquito.
The red dots appear because the mosquito sucks blood, spilling some blood from the capillaries. The small packets appear because mosquitoes inject some acetic acid substances into people's bodies in the process of sucking blood.
For mosquitoes, it is very common in the summer, but some people will be bitten by mosquitoes frequently, while others will not. It is possible that the mosquito likes some of people's blood types, for example, if he likes the O blood type, then he often bites people with O blood type. In addition, people can also be bitten by mosquitoes if they have some scent on their body that attracts mosquitoes.
In addition to this, mosquitoes also like to bite people who are not capable of resisting, such as babies.
However, people wonder why some people have red spots after being bitten by mosquitoes, while others have small packets. This may be judged according to their own physical condition, if those who have good recovery ability, there will be some small packets, which will return to their original appearance after a few hours, and people with poor cell healing ability of the body will have some red spots, which will disappear and return to their original appearance in at least a week or so.
The appearance of red spots after being bitten by mosquitoes may also be the cause of the mosquito species, and it is possible that mosquitoes are poisonous, so they will release venom into people's bodies. Of course, mosquitoes may have capillary overflow in the process of sucking blood, so that a little blood will remain on the surface of people. Generally, when mosquitoes bite people, in order not to let people notice its existence and not feel pain, they will release some saliva in the body, which can relieve the pain, and when the mosquito breaks up, it will notice the pain.
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After being bitten by a mosquito, why do you get red envelopes?
Because before the mosquito sucks blood, in order not to be noticed, it will first inject a venom into the person's **, which will paralyze the human nerve so that the mosquito will not be detected in the process of sucking blood, but then it will be wrapped and itchy. The venom of mosquitoes is acidic, so if you wash it with something alkaline, it won't feel too itchy, such as soapy water.
There is also a saying that there is an acid-base balance in human blood, and human blood is weakly alkaline, and mosquitoes must first inject a certain amount of formic acid into the subcutaneous blood vessels when they bite people to suck blood.
This kind of substance that prevents blood clotting, which contains protein, it is a foreign body to the human body, destroys the acid-base balance of the human body's blood, thereby changing the viscosity of the blood here, the microcirculation of the blood is destroyed, causing a small range of blood coagulation, causing people's own immune response, some people react strongly, it will be red and swollen into a small packet, and will feel itchy; If someone reacts weakly, it is not obvious. After a few days, when the body's blood reaches acid-base balance again, the symptoms will disappear.
There are a lot of bumps similar to mosquito bites, which is likely to be urticaria, and the manifestation of urticaria is that there is itching first, and then wheals of different sizes appear all over the body. Wheals can be bright red or pale or ** color, the size and shape of wheals are not necessarily, the onset time is not different, with the progress of the disease wheals gradually spread, can be fused into large patches of each other, wheals can last for a few minutes to hours, a few can grow to a few days before subsided.
The main feature of this disease is that the wheal can be left without leaving a trace after it subsides, and the itching is usually more intense, which affects sleep. A small number of patients may experience nausea, vomiting, headache, head distention, abdominal pain, diarrhea, and some may even have chest tightness, paleness, increased heart rate, and thin pulse.
So according to different situations, there are different**, if it is only a slight itching, and there are no systemic discomfort symptoms, antihistamines can be used for desensitization and itching**. However, if there is a combination of systemic discomfort, such as chest tightness and discomfort, paleness, and difficulty breathing, it is necessary to go to the hospital in time to prevent the occurrence of anaphylactic shock.
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