An important part of learning to control asthma is keeping a daily diary of your symptoms and PEF measurements and following the action plan that your doctor has developed with you. Recording this information will help you be aware of early signs of asthma episodes. When your symptoms occur or your PEF (peak expiratory flow) readings decrease, you can add medications per your action plan and/or contact your doctor to determine the next step. Your doctor may also use this diary to evaluate how well a treatment plan is working for you. Your doctor may give you special forms or pamphlets that you can use as a diary.
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