Asthma is a chronic, or long-term, disease. If you have asthma, at times your airways (the air passages of your lungs) become inflamed (see picture). When this happens, your airways get red and swollen. They become narrow, making it harder for you to breathe. You may also wheeze or cough. This is called an asthma flare-up (or "attack"). Even when you feel good, your airways can be inflamed. Certain things, such as smoke or dust, can start or trigger an asthma attack
No comments:
Post a Comment