Question: With poison that gets injected into your body (such as a mosquito bite) how does your body raise it to make a that lump that is itchy?

Asked by rchal200 to Emma, Josie, Kristyn, Peter, Sarah on 4 Sep 2013.

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  1. Photo: Emma StewartEmma Stewart
    answered on 4 Sep 2013:

    As far as I know it’s an immune system response which tries to protect you from the mosquito. I’m not an immunologist, so I don’t know exactly how this works! 🙂

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  2. Photo: Kristyn BatesKristyn Bates
    answered on 4 Sep 2013:

    Immune response, just like Emma said! When your immune cells get activated, they spew out chemicals like histamine that cause swelling and itchiness. That’s why some people take anti-histamines when they have things like hayfever.

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