1mag1n3,
Have a look on the Medical section of Pprune, I cannot believe that you are the only person to have this condition and be wondering about a class one, so do a search on asthma and class one,
I found these two by searching for asthma:
http://www.pprune.org/forums/showthr...ghlight=asthma
http://www.pprune.org/forums/showthr...ghlight=asthma
Now also ring the Caa, I know we all fear them, but I have high blood pressure, controlled by drugs and they have no problem with that. their number is: 01293 573700.
Also, this is what happens at you initial Class One:
http://www.caa.co.uk/docs/49/SRG_Med...%5B2188%5D.pdf
Now don't take this the wrong way, but pilots are meant to be resourceful people and to do some research for themselves.
Best of luck .
FC