Question

what causes allergy?​

Answer 1

$\huge\underline\mathfrak\orange{Answer}$

Allergies occur when your immune system reacts to a foreign substance — such as pollen, bee venom or pet dander — or a food that doesn't cause a reaction in most people. Your immune system produces substances known as antibodies.

Answer 2

Answer:

allergent factors scuch as pollen grains , dust, dirt causes allergy

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