Hon, no doubt your "ozone days" have a lot to do with how you feel. Does your AC unit have a good filter? Do you have an air purifier in your home? Both my son and his wife have asthma. They run both the AC and the AP on days when the polution is high. There is also a machine that you can get for free through your insurance that is a compact model of the machines they have in hospitals that they use for inhalation treatments. I have one of those but rarely use it.
Check with your doctor to see what he prefers that you do. IMO, using an inhalor and steam at the same time is counter productive. The medicines in inhalors dry up the secretions and steam makes it easier to move the secretions out of your system.
My son, daughter in law and I all have rescue inhalers to use when everything contracts and we get really wheezy. It works right away, but you also need something like Advair that works good for the long run.
Prednesone (steroid) is good when you can't seem to get over an attack quickly or pneumonia is a factor but your doctor needs to prescribe those.
DON'T drink the Breath Easy tea without consulting your doctor first! I made that mistake once.
Not sure if I'm explaining myself well enough. Let me know if I need to do better here, ok?
EDIT: Stress can bring on asthma symptoms.
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Psalm 119:105 Thy word is a lamp unto my feet, and a light unto my path.