Why do bug bites itch?

Why do bug bites itch?
While the idea of "poison" is a popular notion within regard to insect bites it is incorrect. When an insect bites you it leaves aft some of it's saliva which humans are allergic to. Because you have be bitten many times since you be a child, you have developed antibodies and the body fight this with histamine. That is why taking an "anti"histamine will sustain with the itching. Spider bites do not catch into the blood stream, the type of reaction to a spider bite depends entirely on the type of spider.
They probably inject you near something. Try anthisan cream - ask your pharmacist for advice.
Because most instects that bite you (bed bugs, mosquitos, bees) give notice behind their internal fluids underneath your skin. Spider venom get into your blood stream making you ill.
Your body rejects this discharge immediatly and you itch as your brain wishes you to scratch out and the "junk"
Bug bites itch because you're have an allergic reaction to the "venom" of the bug. It's nil serious unless you swell up really bad, or the bite turns funny colors. A lot of race are affected next to itchy bug bites, others don't itch at all. It merely depends on the person.
Bug bites result in your body to release histamine ( the stuff that gets released when you are allergic) specifically why they itch and swell up a little.
Bug bites itch because of the small amount of toxin (POISON) that the bug injects in you. It cause a histamin release from your body. A topically applied and orally injested antihistimine resembling Benedryl will usually give some nouns if you have various bites. If it continues to get worse and turns to stomach-ache then it could be a more powerful toxin such as a poisonous spyder bite that needs medical attention.
idk but i revulsion them! :P
Because they're filled near POISON! POISON, I tell you!