Table 1 Inclusion and exclusion criteria

1. Written informed consent

1. Unstable asthma

2. Age 16 years or older

2. Presence of active lung disease other than asthma

3. Diagnosis of asthma by a health professional and duration of asthma symptoms ≥ 1 year.

3. Mental impairment or language difficulties that make informed consent impossible.

4. Asthma Control Questionnaire score (6 questions version) greater than or equal to 1 (suggesting poorly controlled asthma)

4. Terminal illness

5. Ability to access the internet (excluding via smart phone or tablet).

5. Cognitive impairment.