Jim is the one with ESLD, but I am the one with dry mouth/irritated tongue because of chemo for my breast cancer.
Look into Biotene toothpaste, mouthwash, and drops. It's OTC. There's also a prescription item called "Miracle Mouthwash" that deadens your mouth for a short period of time so that you can eat what you need to eat. Ask your pharmacist and DR about it. It's a combo of 3 ingredients; what they are I forget.
Carry a bottle of water wherever you go. Dry mouth can result in serious dental problems.
Best of luck.