I have a reduced lung capacity, and a VERY loud, dry cough. I work out 5-6 times a week, which definitely helps (though it's embarrassing when I must cough, which sounds like a lion or baboon!).
The lung doctor gave me 2 different sprays (beclometason dipropionate, salbutamol sulfate) which don't seem to have any effect at all.

I wish I had some product which, like menthol does with frontal sinuses, would immediately dilate my alveoli and let me breathe fully.

Perhaps someone can help me...