Currently I am taking no preventer. I was on Symbicort, but over one year ago after I did spirometry the consultant I saw took me off the Symbicort.
When I was taking Symbicort my PF was around 500. Now without a preventer it is around 400-450. The thing is, I generally feel fine at that level. Occasionally I feel tight chested or cough, but that's it. It's easy to think that I don't really get asthma anymore. But if I take Bricanyl because I feel a bit tight chested, after a while my PF will be up to 500 - much higher than my current 'normal' level. This afternoon before Bricanyl I was 420, and after 490 - about a 17% improvement.
I do lots of sport including running, and generally run without taking Bricanyl before. I sometimes cough when I stop, but I'm OK with that. Should I be worried that my PF is not as good as it could be if I actually feel fine at a lower level? I prefer to not take a preventer if I don't really need it.