Question

Which of the following is/are the entry route(s) of allergens?

• A. nose
• B. mouth
• C. hairs
• D. skin

Answer 1

Answer: (A), (B), (D)

The correct options are
A

nose

B

mouth

D

skin

The substances like sunlight, dust, mites, pollen grains, that cause allergic reactions are called allergens. An allergen can enter the body in the following ways:

Through the nose: Allergen such as pollen grains, dust and animal hair can enter the body when a person breathes in.

Through the mouth: Food allergens such as milk, eggs, fish and some medicines enter the body when a person consumes food containing them.

Through the skin: Allergic reaction also occurs due to insect bites and stings. An allergy is also caused when our skin comes in contact with certain metals, cosmetics and strong sunlight.