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

Question

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

In: 15

Answer 1

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

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

There seems to be a misconception here. Allergies **are** immunity. You remaining allergic is rooted in the same mechanisms that keep you immune against chickenpox and whatever other pathogens.