I don't know if you have paid attention, what symptoms will occur after being bitten by mosquitoes? Why is it that some people are a small red dot and some people are oversized mosquito packs? Today, I will take you to explore this secret~
Is it a dot or a package that has something to do with it?
Some people say that if your blood is sucked too much, a large mosquito pack will form, and vice versa, a small red dot will form; Some people say that it has something to do with each person's physique, or with the type of mosquito.
In fact, it's mostly related to the virulence of mosquitoes and the degree to which our own immune system reacts.
When pathogens enter the blood, lymph and other parts of the body, B cells will be stimulated by external antigens to change their shape, increase their size, and become plasma cells, which can secrete antibodies to specifically bind and remove antigens and exert humoral immunity.
When pathogens enter cells, T cells can exert cytotoxic effects, remove antigens or foreign substances, and maintain health. After the infection is suppressed for the first time, the immune system remembers the causative substance so that it can respond accurately and quickly if the same causative substance invades again.
In general, after being bitten by a highly venomous mosquito (such as the flower mosquito), there will be strong symptoms and itching. If you've never been bitten by a mosquito before, a mosquito flies in and inserts its mouthparts into the blood vessels of your subcutaneous tissues and secretes substances from the salivary glands to prevent blood clotting and prevent the mouthparts from being pulled out smoothly.
After the mosquito pulls out the mouthparts after sucking blood, the capillaries will bleed, forming a small petechiae, and the mosquito's secretion will induce a little inflammatory reaction, which looks like a small red spot or erythema.
At this time, because your immune system is not yet able to recognize this "foreign object", it will not take the mosquito bag, but the immune system will remember it, and the next time you encounter this mosquito bite, it will summon many immune cells within a few seconds to produce substances such as histamine and cytokines, which will dilate your capillaries, produce itching, and induce inflammation, therefore, the mosquito bag will become large and itchy.
If you continue to be bitten by the same mosquito, the immune system's response will slowly become "numb", and the body's response will become weaker, and there will be no more large mosquito packs. Therefore, whether being bitten by a mosquito is a red dot or a mosquito pack depends on how well the immune system reacts to it.
But what we're talking about here is that ideally, it's very difficult to "numb" the immune system, and different mosquitoes have different substances in their salivary glands, and the immune system will "defend" again
Mosquito repellent tips
1. After exercising and sweating, take a shower quickly.
2. Eat more vegetables that contain carotene, mosquitoes hate the smell. If you like heavy flavors, garlic is also a good choice to ensure that mosquitoes see you and turn away.
3. Wear light-colored clothes, do not absorb heat and do not attract mosquitoes.
4. Place some plants at home that can beautify the scenery and are harmless to the human body, but mosquitoes are very annoying, such as jasmine, mint, and lavender.
Source: Linxia Rong Media Center