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Home > Patient & Family Resources > Health Library > Asthma Diary
An asthma diary helps you keep track of how well you are managing your asthma.
If you have symptoms or an asthma attack, record the trigger (if possible), the symptoms, and what kind of medicine you used for relief and how well it worked. Also note if you had to contact your doctor or seek emergency care. This can help you know your triggers and help your doctor monitor your treatment.
If your doctor recommends it, measure your peak expiratory flow (PEF) often, every morning and evening if possible, and record it in your diary. It may be helpful to record your PEF using the same green, yellow, and red zone system used in your asthma action plan.
Here is an example of how to use an asthma diary if you are keeping track of peak flow.
Week of October 12
My personal best peak flow is 400 liters per second. My:
My current long-term (controller) medicine is fluticasone.
Quick-relief medicine and response
Red zone visit to doctor/hospital?
Click here for a blank asthma diary template( What is a PDF document? ).
Health Tools help you make wise health decisions or take action to improve your health.
Current as ofSeptember 5, 2018
Author: Healthwise StaffMedical Review: E. Gregory Thompson, MD - Internal MedicineAdam Husney, MD - Family MedicineRohit K. Katial, MD - Allergy and Immunology
Current as of:
September 5, 2018
Medical Review:E. Gregory Thompson, MD - Internal Medicine & Adam Husney, MD - Family Medicine & Rohit K. Katial, MD - Allergy and Immunology
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