Who's at risk of allergic asthma?

A family history of allergies is a major risk factor for allergic asthma. Having hay fever or other allergies yourself also increases your risk of getting asthma.

Is all asthma caused by allergies?

Though allergic asthma is very common, there are other types of asthma with different kinds of triggers. For example, for some people, asthma can be triggered by exercise, infections, cold air, gastroesophageal reflux disease or stress. Many people have more than one kind of asthma trigger.

Take charge: Get symptoms under control

Know the things that trigger your allergy and asthma symptoms and learn how to limit your exposure to them. Work with your doctor to find the best treatment to manage your symptoms, and check in with your doctor on a regular basis. Because allergy and asthma symptoms can change over time, you may need to adjust your treatment accordingly. Learn the signs that your asthma may be flaring up — and know what to do when it does.

Feb. 27, 2013 See more In-depth