Question

Allergies are an overreaction of W which system in the body?

Answer 1

it is an overreaction in the immune system.

Answer 2

Allergies are an overreaction of your body's immune system to a harmless foreign substance that enters the body, like pollen or animal dander. Substances that cause this reaction are called allergens. The job of your immune system is to identify foreign substances in the body and get rid of them.