An asthma action plan is a list of instructions that tell you:
- Which medicines to use each day at home
- Which medicines to take if your symptoms get worse
- When to get help or call for an ambulance (in the U.S., dial 9-1-1)
If you have frequent or severe asthma symptoms, your clinician might suggest that you have an asthma action plan. If so, you and your clinician will work together to make one. As part of your action plan, you might need to use something called a "peak flow meter." Breathing into this device will show how your lungs are working. Your clinician will show you the right way to use your peak flow meter.