Things that cause asthma (AZZ-muh) attacks or make asthma worse are called triggers. Asthma triggers can be found in your home, your child's school, child care, and other people's homes.

Allergens (AL-er-jinz) are things your child may be allergic to.

Sinus (SYE-nis) and lung infections. The sinuses are spaces inside your head, behind your nose. They can get infected. Pneumonia (nuh-MOH-nyuh) is a kind of lung infection.

Things your child breathes in.

Exercise. Some people with asthma wheeze*, cough, and get a tight feeling in the chest when they exercise. But they can still be active. There are medicines to use before exercise.

You can’t get rid of all the asthma triggers in your home. But there's still a lot you can do. Here are some tips:

Don't smoke. And don't let anyone else smoke in your home or car.

Protect your child from dust and...

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