Question

Write short (1-2 sentences) note on the following:  

Allergy

Answer 1

Allergy is an unpredictable reaction to a particular substance. This type of substance is called an allergen. Different people are allergic to different substances. A few common allergens are dust, spores, pollen, certain clothes, particular cosmetics, etc. The common areas of the body parts which are affected by allergies are skin, respiratory and digestive tracts. Asthma, eczema, diarrhea, vomiting, nausea, etc. are some of the common allergic reactions.