Question

A young boy when brought a pet dog home started to complain of watery eyes and running nose. The symptoms disappeared when the boy was kept away from the pet.

1. Name the type of antibody and the chemicals responsible for such a response in the boy.
2. Mention the name of any one drug that could be given to the boy for immediate relief from such a response.

Answer 1

The type of antibody responsible for the allergic response in the boy is IgE (Immunoglobulin E).

1. The chemicals responsible for such allergy symptoms (like watery eyes and running nose) are histamine and serotonin, which are released from mast cells when IgE binds to allergens.
2. For immediate relief from such allergic symptoms, an antihistamine drug can be given. An example of such a drug is Diphenhydramine (commonly used as an antihistamine for allergies).