Why Do Allergies Exist?

Allergies occur when your immune system reacts to a foreign substance — such as pollen, bee venom or pet dander — or a food that doesn't cause a reaction in most people. Your immune system produces substances known as antibodies.

When did humans start having allergies?

Though allergic reactions have been documented in ancient Greek and Roman history, the modern era of the study of allergies really began in the 1800's when hay fever was described by Dr. John Bostock in 1819.

Can allergies Be Cured?

Can Allergies Be Cured? You can't cure allergies, but you can treat and control the symptoms. It may take a little work. You'll need to make a few changes to your surroundings or figure out how to stay away from things that trigger allergy attacks.