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First a person eats something with an allergn, or a substance that causes an reaction for the first time.
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The plasma cell exposes an antibody or protein that will detect the harmful substance.
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The anitbody then attaches itself to cells in the tissue, in order to prepare the body for if the allergen tries to end the body again
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If the allergen enters the body again, it will attach to the antibodies, which then sends out a signal to the body to release large amounts of histamine
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The histamine then causes irriation and swelling to different parts in the body.
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The result of the reaction differs in every person. The most common allergic reactions include but not limited to: hives, itching, troubling breathing, flushing, swelling, or stomach cramps.
