Asthma overview (1883)
Key points below
What is asthma?
Asthma is a disease that affects the lungs. It can last a lifetime. Even if asthma symptoms are not active, asthma is still there. There is no cure for asthma, but there are many things that can be done to help control it.- Fewer asthma symptoms
- Fewer missed school or work days
- Fewer visits to the emergency room
- The ability to be more active
How does asthma affect the lungs?
The lungs are made up of many tiny airways. The airways carry air in and out of the lungs. When an asthma attack happens:
- The airways become swollen
- The airways make more mucous
- Muscles around the airways squeeze tight
What are the signs and symptoms of asthma?
When asthma begins to flare or act up, it is harder to breathe. You may start to cough or wheeze, or your chest may feel tight. These symptoms may get worse. This is often called an asthma attack.
How do asthma medicines help?
Asthma medicines help the lungs stay healthy. There are two main types of asthma medicine:
- Controller medicine. This medicine helps decrease the swelling in the airways. It works slowly and needs to be taken every day.
- Rescue medicine. This medicine helps relax the muscles around the airway. It works quickly and should be taken when asthma symptoms occur. Sometimes your doctor will recommend taking the medicine before gym class, activity or exercise.
How are asthma medicines given?
Most asthma medicines need to get into the lungs to work. There are several ways to get asthma medicine to the lungs:
- Inhaler or pump
- Nebulizer
- Liquids or pills taken by mouth
- Injection or shot
Special tools or devices are used to help get asthma medicine into the lungs.
- Spacers are used with metered dose inhalers. It helps slow down the speed of the medicine so it can get into the lungs and not to other parts of the body.
- Nebulizers turn liquid medicine into a mist that can be breathed into the lungs.