“Allergies” is a general term that refers to a reaction the body has to allergens. Allergens are substances that are generally not harmful to the body. 

Allergic rhinitis refers to inflammation in the nose (rhinitis) that occurs when you are exposed to a substance you are allergic to. Allergic rhinitis is sometimes called “hay fever” or “seasonal allergies,” although it can be caused by nonseasonal substances as well.

The term “allergic rhinitis” does not refer to all kinds of allergies you may have. For example, food allergies and allergies to medications do not typically cause allergic rhinitis.

Treatment is only available through Roman for allergic rhinitis, if appropriate. Treatment is not available for food allergies or medication allergies.

Researchers aren’t sure why some people develop allergies and others do not. What we do know is that the tendency to develop allergies is genetic. This means if your family members have allergies, you are more likely to have them as well. 

Additionally, certain allergic conditions commonly occur together. Known as the “atopic triad,” these conditions are allergic rhinitis, eczema (also called atopic dermatitis), and allergic asthma.

Allergic rhinitis is typically caused by airborne allergens, roughly divided into outdoor airborne allergens (tree pollens, grass pollens, weed pollens, etc.) and indoor airborne allergens (animal dander, dust mites, mold, etc.).

Outdoor allergens are usually seasonal because plants release pollen at certain times of the year. Indoor allergens may be present throughout the year, but certain situations can make indoor allergies worse. For example, animal dander allergies may be worse in the winter because pets may spend more time indoors and there is less circulating fresh air.