Allergy is a condition that affects many of us. An allergy occurs when a person’s immune system overreacts to substances that are usually harmless. These substances are called ‘allergens’.

The main causes and conditions that cause allergies are given below: The main reasons for allergies (Reasons) Dust and germs: …

Allergy is a condition that affects many of us. An allergy occurs when a person’s immune system overreacts to substances that are usually harmless. These substances are called ‘allergens’. Read More