Allergies are a common health problem that affects millions of people worldwide. They can come in various forms, such as food allergies, allergies to pollen, dust, mould, animal dander and many others. Allergy symptoms can be bothersome and affect quality of life. In this article, we will discuss what allergies are, what the symptoms are, how allergies can be diagnosed and how to manage allergy problems through lifestyle changes, drug treatments and natural methods of symptom relief.