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Why do mosquito bites itch and swell up?

Why do mosquito bites itch and swell up?

Itchy mosquito bites can be a nightmare in the summer. But what makes these bites so itchy? When a mosquito bites, our immune system kicks in to protect us against the attack. This is similar to an allergic reaction and causes a raised, itchy bump to appear. This article discusses what makes mosquito bites itch […]