ANATOMY

Detailed explanation-1: -An allergen is a substance that can cause an allergic reaction. In some people, the immune system recognizes allergens as foreign or dangerous. As a result, the immune system reacts by making a type of antibody called IgE to defend against the allergen. This reaction leads to allergy symptoms.

Detailed explanation-2: -Common allergy triggers include: Airborne allergens, such as pollen, animal dander, dust mites and mold. Certain foods, particularly peanuts, tree nuts, wheat, soy, fish, shellfish, eggs and milk. Insect stings, such as from a bee or wasp. Medications, particularly penicillin or penicillin-based antibiotics.

Detailed explanation-3: -An allergen is a type of antigen that produces an abnormally vigorous immune response in which the immune system fights off a perceived threat that would otherwise be harmless to the body. Such reactions are called allergies.

Detailed explanation-4: -Allergy occurs when a person reacts to substances in the environment that are harmless to most people. These substances are known as allergens and are found in dust mites, pets, pollen, insects, ticks, moulds, foods and some medications.

Detailed explanation-5: -An allergen is a substance due to which allergic reaction occurs. In some people, the immune system recognizes allergens as foreign or dangerous agents. As a result, the immune system produces IgE antibodies to protect the body from the allergen This response causes allergy symptoms.