A short glossary of asthma terms.

A food allergy is not the same as food intolerance, although some of the symptoms are the same.

This information from the National Institute of Allergy and Infectious Diseases (NIAID) can help you determine if you're suffering from allergies or a cold.

It's not the dust mite itself that causes trouble for people, but its shed skin and fecal matter. These substances bring misery to millions of allergy sufferers.

Hives occur when something prompts cells to release histamine, a chemical found in the skin.

Roughly one person in four has some kind of allergy. The most common is "allergic rhinitis," which includes seasonal hay fever and year-round allergies to dust, animal dander, mold and some foods.

Doctors usually don't look inside your nose unless they have a specific reason. Usually, they are looking for an infection or allergy. Sometimes, they're looking for other sources of your breathing problem, such as a deviated septum, the term doctors use to describe a misalignment of the cartilage that runs down the center of your nose.

Use this guide of common terms used on over-the-counter labels to help you choose and use medicines correctly.

Sneezing may seem simple, but it's more involved than you think.

The nose on your face is just the tip of an iceberg. The important functions—breathing and smelling—actually happen mostly inside your head, in your nasal cavity.

Your lungs are remarkable organs with multiple roles. Each day, up to 2,300 gallons of air pass through your lungs.

People with asthma, allergies, or other breathing conditions may be more sensitive to mold.