A little aside...
I don't smoke dope. For many reasons. I no longer enjoy being stoned, for one.
Last week, however, I decided to have a go, after many years, to remind myself what it was like, and sure enough, I got stoned. But:
I suffer quite badly from asthma, induced by allergies to stuff that thrives where I live: in a coastal rainforest.
Lo and behold, after a little dope, my asthma disappeared, completely, for several days.
I researched this, and strangely enough, it turns out that many people have noticed this side-effect.
Much as I dislike dope, and everything that goes with it, I think I'm going to have to experiment with this anti-allergy effect a little more deeply. Even I may be able to bear being stoned, sometimes, if it means I can breathe freely.