Talk with your health care provider.

The best way to know for sure if you have asthma is to start with a simple breathing test called spirometry.

If the test is positive, it confirms asthma, but if it is negative, other breathing tests (including specialized asthma tests) may be required to determine the cause of your symptoms.

If you have asthma and it is not treated, you could have dangerous asthma attacks that need treatment with steroid pills or injections, and a visit to the emergency room. Over time, untreated asthma can cause permanent scarring to the airways in your lungs.

If you have been told that you have asthma and have been prescribed an asthma inhaler, but have never had a spirometry test, ask your health care provider about this test.

Always speak with your health care provider before making any changes to your medications.

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