Jen,

you brought back a memory!! The lovely rope of phlem! My one tip for the coughing so hard you make yourself vomit....open up your peg tube. It was easier than throwing up via your mouth. And it stopped the gagging. My other suggestion is drinking more water. I do remember just being able to literally pull out a rope of phlem.

Try the peg tube open in the sink, it helped!
I went thru chemo and radiation with a three year old so my heart is thinking of you!

C