Why do we get immunity after being exposed to a pathogen but not an allergen?

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I get allergies almost everyday because of dust/pollen. But I will not get chickenpox after being exposed to it once.

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Anonymous 0 Comments

An allergy is you being immune to the thing. Your immune system attacks it, same as it attacks a bug you’re immune to. The symptoms of a cold are your immune system working. It’a just that the bug isn’t around all the time like an allergen can be.

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