Klo

Mucinex's active ingredient is Guaifenesin and some OCF posters have found relief from it. I second David's request to keep us posted if you have any success. Throughout this 3 year struggle, the only constant has been phlegm. Conceptually, thinning out the phlegm makes sense as a coping mechanism.
Early on I had to use seltzer water to break it up, but my surgery which left me unable to swallow, also eliminated dry mouth entirely since even the non perceptible trickle of saliva pools up quickly. This seems to keep the phlegm moist enough to cough up much more easily with just a gargle of plain water.
However, I'd gladly trade this ease for the former difficulty and choking if I could swallow again.
Finally a Google search turned up an Australian Cough medicine called: Duro-Tuss Chesty Cough Liquid Forte which is a mixture of both Bromhexine, Guaifenesin
charm