The rare case I got mid ear infections with fluid behind the tympanic membrane I did threat it with a mucholithic aerosol and performing BTV (opening voluntarily the tubes) while doing the aerosol.True, but he said he has "Fluid in tube behind ear drum," and I don't know of any treatment for that other than letting the body deal with it in time.
Of course I assume one can use BTV, unfortunately a percentage of population seem to be unable to use this technique..
If the aerosol penetrates in the medium ear through the tubes, it washes out all the bad fluids trapped inside...
This means healing in 2 days instead of 2 weeks.