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Allergens: Pollen

Pollen is the most common cause of seasonal allergic rhinitis, sometimes known as "hay fever."

Allergens: Animals

Household pets, like cats and dogs, are the most common sources of animal allergens.

Allergens: Dust and Dust Mites

Dust mites are microscopic organisms that can live and thrive throughout homes and businesses.

Your Child's Allergies: Dust Mites

Detailed information on dust mite allergens

On the Air: Which Products Help You Breathe Better?

Here are some helpful tips for understanding the air in your house and the air-quality appliances that can alter it.

Asthma: Allergy Testing

If you think you may have allergies, talk with your healthcare provider about getting tested.

Controlling Asthma Triggers

Triggers are those things that can make your asthma symptoms get worse or flare up. It's important to know your triggers and try to avoid them.

Controlling Asthma Triggers in Your Environment

An important part of managing asthma is the control of triggers. These are things that make symptoms worse or cause flare-ups. Triggers may be anywhere, inside or out.