Vaseline, using this under the nose to mask odors, and its helping. I use a cocoa
butter version which smells gorgeous and also prevetns my nose / throat becoming dry

i did read this on wiki that once the smell has been removed, the effects caused are also removed. it may be the actual smell rather than the chemicals themselves

Re: Shortness of breath — when it is hot and dry; and right before it rains if it is hot as well. Humidity generally plays little to no role.

ohmygoshjosh
Re: Exercise — I find that if I am out of shape, my asthma is there, but if I've been exercising and am in good shape, it seems to go away completely! When I am out of shape, exercising does itself sometimes induce my asthma, but never to the point where I have to stop the exericse.

sasha3159
Re: Shortness of breath — right before it rains it seems to be the worst

Read
Re: Shortness of breath — Exercise/Weather induced. Sprints in cold, dry weather are most difficult.

IowaGirl
Re: Exercise — sometime exercise induces my asthma but I have found I can limit its affect by varying the intensity of my workout to allow my lungs some recovery.

AtlPhil
Re: Common cold — When I get a cold it can move to my chest then I have trouble breathing / asthma that can last for weeks.