i had asthma for 15 years, then went to a local witch doctor ( natutal remedy herbalist type thingy) who did some tests and she said to totally keep off dairy products and sugar, now bear in mind i had this for 15 years, within 2-3 days of following this my attacks went,totally, thats after using becotide/ventolin in spray form and capsule etc etc for years and years, being took into hospital etc, it really worked . after staying off for a coule of months i started to have dairy/sugar again and it never returned, mine used to be brought on by running, that was about 10yrs ago and i have NEVER EVER had it again since then, the docs said i would grow out of it , they sai the becotide would help etc etc , bollox , none of that happened, it got worse and worse until i stopped the dairy stuff, that bit of advice change dmy life from then on

joined the para's after that and was all gravy from then on
try stopping the dairy and sugar phil for a week and see how ya get on , ya never know it could work for you too