Why does it feel itchy to get red blisters after being bitten by a mosquito?

Mosquitoes can't open their mouths, so they won't bite on the **, they actually use six needle-like structures to pierce people's **, and these mouth needles (stylets) form the center of the mouthparts. These needles suck in blood in the same way that they 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 float away, all they leave behind is an itchy lump.

However, the itchy sensation is not caused by needles in the mouth 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.

Only female mosquitoes bite mammals as they are every other day.

Blood must be sucked once every three or four days to obtain the protein needed to make eggs; Male mosquitoes, on the other hand, mainly feed on nectar. Female mosquitoes use the animal's body heat and physiological changes to search for targets, which may be why human ankles and feet are more commonly bitten by mosquitoes, because the blood vessels in these areas are closer to the body surface and therefore release more body heat.

In Wencheng's saliva, there is a component with Zuo's capillaries and anticoagulant function, which will make the blood flow to the mosquito bite, so that the mosquito can eat very happily, because of the chemicals in the mosquito saliva, so there will be blistering and itching; Because mosquito bites can produce allergic symptoms, some people react mildly, some people will be particularly serious, young, ** on a red dot.

After the mosquito bites, the venom in the mosquito's body will enter the person's **, causing small red spots. And it will cause itching in people's **. You can use a little toilet water to stop itching.

**: Very easy to apply toothpaste.

Prevention: It is impossible to prevent it.

If it's itchy, try not to scratch it with your hands, rub soap on the itchy area until it doesn't itch and rinse it off. Remember, don't scratch the itchy area with your hands, otherwise, bacteria will enter and the blisters will get bigger and bigger, red and swollen. You can try to wipe with aloe vera to reduce inflammation first, and then use a combination anti-inflammatory cream or no-end cream for topical application and antihistamine internally.

In previous years, I couldn't help it, what kind of toilet water cool oil and other mosquitoes seem to be almost immune, this year I used the "Xiaobaoling" bought online, it is indeed 1-2 minutes to relieve itching, 20-30 minutes to reduce swelling, spray in advance and prevent bites.

Insect bite dermatitis, also known as "papular urticaria", is mainly related to the bite of arthropods, such as mites, and is more common in spring, summer and autumn. Due to the different species of insects and the difference in the reactivity of the body, it can cause different ** reactions at the bite site. It is generally a red edematous papule, which may have small blisters, the size of soybeans, and is more likely to occur in exposed areas and around the waist.

**Can be taken externally with anti-inflammatory cream or cream, and antihistamines.