Run it Ride it had a very good point. Start out slow and let yourself and your lungs get used to the air.
I am currently taking Advair 500 2x daily, singulair 1x daily and albuterol as needed. Clariton during allergy season. Luckily I have never had an attack serious enough to go to the hospital or doctor.
I haven't run or ridden my bike in the cold but I have x-country and downhill skied in -0 degree farenheit weather. AND shovelled plenty of snow
The same thing happens to me, I get clogged up, cough and cough, clear it out and then usually do fine. or cough all the way up the chair lift and breathe fine skiing down.
I pretty much always wear a face mask over my mouth and nose.
good luck and hope you can work out a solution
It's about the journey and being in the moment, not about the destination