Biology, asked by Quena, 18 hours ago

what is Histamine is allergy lesson.

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Answered by an884769

1

Answer:

Histamine - a chemical found in some of the body's cells - causes many of the symptoms of allergies, such as a runny nose or sneezing. When a person is allergic to a particular substance, such as a food or dust, the immune system mistakenly believes that this usually harmless substance is actually harmful to the body.

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