Question

why do we get allergies​

Answer 1

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The exact causes of allergy symptoms are still being investigated. However, it is known that these are due to immune system pathways that lead to inflammation after an encounter with allergenic proteins in the environment. These proteins are often from plant pollens, animal dander, insect venom, or certain foods.

Answer 2

Answer:

Allergy:

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.

Main cause of allergy:

Allergic contact dermatitis occurs when the skin comes into direct contact with an allergen. Touching clothing, pets, chemicals, soaps, and substances such as poison ivy or cosmetics can trigger allergic reactions. Food allergies can also cause the skin to itch.