too late to have clearing of the lungs help?

[Guest guest]

Someone recently repeated something to me that a nurse told her. The nurse had

worked closely with someone who had bronchi;

" If bronchiectasis is to advanced in the lungs, clearing them is not a good idea

and it won't help. "

I am under the impression that keeping the lungs clear is one of the most

important things to do. Is there a time when it shouldn't be done and will no

longer help?