This is a single-centre, randomized, controlled, parallel group, assessor-blinded trial to evaluate the effectiveness of Personalized Mobile Phone Video Recording in addition to standard care, compared to standard care alone, in improving inhaler technique among patients with asthma.~Patients are randomised to either Personalized Video Recording with standard clinical practice group (intervention) or to standard clinical practice group (control) in 1:1 ratio.~Subject's inhaler technique assessment is performed by using a standard checklist of steps according to the type of inhaler used by subject.~All inhaler technique assessment and asthma control questionnaire will be administered before the intervention/control treatment by a blinded assessor. Both intervention and control treatment will be administered by the same investigators.
To investigate the effectiveness of addition of recording video of the patient performing inhaler techniques using mobile phone for discussion with the patient, to standard care inhaler education compared to standard care inhaler education alone, in improving inhaler technique of asthma patients.