1) Bronchodilator user 2) Inhaler user 3) Of a respiratory disease 4) Suffering from asthma 5) Unhealthy 6) Wheezer 7) Wheezing 8) Wheezy 9) Wheezy one Found on https://www.crosswordclues.com/clue/asthmatic
[Noun] Plural form: asthmatics. A person with asthma, a breathing disorder Example: Asthmatics often have to use an inhaler.
Found on http://www.bbc.co.uk/skillswise/glossary/