Allergies

Allergic rhinitis is also known as "hay fever." The symptoms can be seasonal, especially in the spring and fall, or year round. In this video, you'll learn what happens when you have allergic rhinitis and what you can do to minimize symptoms.

You have an allergy when your body believes that something harmless, such as peanuts or pollen, can hurt you. Your immune system overreacts. This can cause uncomfortable or even dangerous symptoms.

This is an allergic reaction to pollen. Pollen is a fine powder that comes from trees, grass and weeds. Different people are allergic to different types of pollen, and they react to it in different ways. Hay fever can be a real nuisance.