does anyone have any ideas on how to prevent your lungs from drying

HI everyone
 
i have severe asthma and i was wondering if anyone had this problem to
 
when ever i exersice or sometimes even go up stairs my lungs dry out and it gets hard to breathe   i take my inhalers and it still happens i even tried nebulizer treatments before and the same thing happened
 
so does anyone else have this problem and if so do you have any suggestions
thanks
 
              ~V.J.~
please reply
i wish i had an answer for you. the only suggestion i can make is to drink lots of water. i'm not sure if i have asthma but i have severe allergies to almost everything and i'm always short of breath. my lungs and throat feel like they are coated with sticky glue a lot of the time. i hear that it can loosen secretions.