Just recently discovered the existence of such.
Asked my GP about it and she was non-committal - said she only knew of them being used with people who were "on their way out".
At this visit she finally referred me (after 3 years) to a pulmonologist whom I won't see until mid September - she said he could tell me more about it.
Question:
Is there any reason NOT to get one?
What I've read as benefits seems quite logical even as a practical use WITHOUT a mucus issue.
I've used blowing up balloons as a simulated exercise and can clearly see where it may very well be of some benefit.
I just have to wonder why the GP was so vague in her opinion.
I'm seriously considering ordering one unless I discover some reason why I should NOT use one.
Any recommended brand or design?