What Happens In an Asthma Flare-Up? (Video)
What's An Asthma Flare-Up?
You probably know that asthma is an illness that causes breathing problems. But what happens in the lungs when someone has an asthma flare-up? Watch this movie to find out.
Asthma Flare-ups: What Happens
Learn what asthma is, what happens during an asthma flare-up, and how to control and live with asthma.