What is an allergy?
The immune system of our body is a remarkable defence mechanism against foreign invaders. In most of the people, it plays its part by fighting off bacteria, viruses, protozoans or fungi that find their way into our bodies. In some unfortunate people, their immune system overreacts to something that’s usually harmless and this phenomenon is known as allergy or hypersensitivity reaction. Those triggers, called as allergens, can include pollen, mold, animal dander or certain foods.