Currently, asthma can't be prevented. However, you can take steps to control the disease and prevent its symptoms.

* Learn about your asthma and how to control it.
* Follow your written asthma action plan. (For a sample plan, go to the National Heart, Lung, and Blood Institute's Asthma Action Plan.)
* Use medicines as your doctor prescribes.
* Identify and try to avoid things that make your asthma worse (asthma triggers). However, one trigger you should not avoid is physical activity. Physical activity is an important part of a healthy lifestyle. Talk with your doctor about medicines that can help you stay active.
* Keep track of your asthma symptoms and level of control.
* Get regular checkups for your asthma.

For more details about how to prevent asthma symptoms and attacks, go to "How Is Asthma Treated and Controlled?"