A yound boy when brough 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. (a) Name the type of antibody and the chemicals responsible for such a response in the boy. (b) Mention the name of any one drug that could be given to the boy for immediate relief from such a response.

Explanation

(a) The IgE type of antibody and chemicals like histamine and serotonin released from mast cells are responsible for this response. (b) Drugs like anti histamine, adrenalin and steroids can be given to the boy for immediate relief from such a response.