Silly question, but would standing on your head help drain the lung fluids. Thinking of a hospital with a rotating strap on bed. Or perhaps just lying with your head below your feet might help ?
That’s an interesting question.
I prefer to sit and sleep upright and take copious quantities of guaf to break up the crud so I can cough it up. It was so bad about 10 years ago (from season allergies) I kept a garbage can (plastic) with 1/2 bleach in the bottom to spit what I was coughing up. I was a mess.
If the fluid is thin enough, it might. But with a lot of illnesses, the fluid is thick and sticky. It would be like trying to drain Silly String.
Having your head below your feet for long periods would be uncomfortable, but having your head below your rib cage might not be as bad, and would have the same effect on the lungs.
I have some back exercises that result in that, and I can’t say I’ve noticed any effect on my lungs. But I’ve also never tried it when my lungs were congested, either.
If you decide to test that method, please let us know whether or not it works.