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A member asked:
Why do mosquito bites itch days later?
A doctor has provided 1 answer
Mosquito bite: The itching is actually a response of the immune system to antigens that are present in the mosquitoes saliva. Mosquito injects a bit of its saliva, which acts as a 'local anesthesia' so we won't know for a few seconds that we have been bitten. It also acts as an anticoagulant, preventing the blood from clotting so the mosquito can be free to draw blood for as long as it pleases.
Answered 8/30/2018
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