ASTHMA AND ALLERGY IN CHILDREN
Certain substances to which normal people do not react are called allergens, and the reaction that an allergic person gives when allergens are contacted is called allergy. While a person who is not allergic can go to picnic to the meadows among trees in the spring, one with history of allergy and pollen hypersensitivity suffers from a crisis associated with severe sneezing, nasal and eye discharge, itching, and cough in such an environment.