That's good to know, serafim_etal. I have asthma but don't have allergies, it's adult-onset (I was in my 50's when I got it) and I think was caused by an imbalance caused by too many antibiotics when my appendix burst and I had bad stuff wandering around inside for 5 months afterwards. My grandmother died of emphysema so I obviously inherited her "weak" lungs and the stress on them made them crack. It's hard now because I never know when/why I might start needing my rescue inhaler more/less, there's rarely any rhyme or reason that's discernable.