Question

2. Answer the following questions :
(a) Give five examples of allergens.
(b) How do allergens enter human body?
(C) Explain scratch test.
(d) What are antihistamine? Give its role in allergic reactions?
(e) Explain the mechanism of an allergic reaction.
(f) Give three symptoms which are shown by the people suffering from asthma.
(g) List six symptoms of allergy.
(h) Write in brief about eczema.
(i) How can you treat asthma?
(1) How does the general cleanliness of the surroundings help in preventing allergies?
Explain.​

Answer 1

Answer:

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