Dismiss Modal

Symptoms

Monitoring Your Asthma Symptoms

Choose a preferred language

It is very important to track your asthma symptoms so you can take action if there is a change.

There are 2 ways to track your symptoms. Some people use a peak flow meter to track their asthma symptoms. The peak flow meter measures how well air is moving out of your lungs. And some people keep track of small changes in their symptoms. They write them down every day. Symptoms may include coughing, wheezing, trouble breathing, chest tightness, difficulty doing normal activities, and waking up at night with symptoms. Also note if you use your quick-relief inhaler more often than usual.

Your healthcare provider will help you make a plan to manage your asthma symptoms by developing an Asthma Action Plan. They will also tell you what to do if your symptoms get worse.

If you have a flare-up or asthma attack, always refer to your Asthma Action Plan. If you don't have an Asthma Action Plan, talk with your healthcare provider. An Asthma Action Plan should be updated every year or when your treatment changes.

If you use a peak flow meter, you should know your personal best reading. You should also know how to use the meter correctly, and how often you should measure your peak flow.

Woman using a peak flow meter.


Using your peak flow meter

Here are the steps to follow:

  1. To start, stand or sit up straight. Use the same position every time.

  2. Hold the meter and move the marker to 0 or to the lowest number.

  3. Breathe in as deeply as you can.

  4. Place your lips tightly around the mouthpiece of the meter. Make sure to keep your tongue away from the mouthpiece.

  5. Blow 1 time as hard and fast as you can. Note the reading.

  6. Repeat the process a total of 3 times. Record your highest reading.

Featured in

© 2000-2025 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.

Personalized care starts with the right provider

Search by specialty, location, and more.

Find a Doctor
Related Articles
Read article
Lung Health
Controlling Your Asthma Triggers

Triggers are things that can make your asthma symptoms worse or flare up. It's important to know your triggers and try to stay away from them.

Read article
Lung Health
Work-Related Asthma

You may get work-related asthma by breathing in irritants at work. The symptoms may go away when you're not at work. But long-term exposure can cause lasting damage.

Read article
Lung Health
Controlling Asthma Triggers at Home and Work

An important part of managing asthma is the control of triggers. These are things that make symptoms worse or cause flare-ups. Triggers may be anywhere, inside or out.

Read article
Lung Health
Your Asthma Health Care Team

A detailed look at the team of healthcare providers who will help you manage your asthma.