After examined for their eligibility and recruited into this study at outpatient service, all participants have their case records which contain their baseline data and receive the same standard asthma education(including basic knowledge about asthma, how to use their medicine, what to do when an asthma attack happens and when to come back for their disease review and so on). Each patient is given a paper asthma diary and a peak expiratory flow(PEF) measurer for free. In addition, they are told what intervention they will receive and revised face-to-face one month after the beginning of intervention. After the 3-month study period, when they return to the hospitals, they will return the asthma diaries, be asked to fill in the questionnaires and take pulmonary function tests.
