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Food is eaten for the first time
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IgE antibodies are formed. Antibodies are proteins that detect potentially harmful substances.
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Antibodies attach themselves to cell in tissue all over body
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Food is eaten for the second time
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Allergen binds to the IgE. An allergen is a substance that causes an allergic reaction
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A signal is sent out to the body which will result in a large amount of histamine being released
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Excess histamine causes irritation and swelling all over the body