We use those pink, minty swabs. I was surprised that when I read the ingredients listed on the swab, "mannitol" was one of the ingredients.
I believe in ice chips, I used them sparingly, but they really help the patient to be more comfortable. I've also found I need less pain medication if patients are perceiving our attempts at distraction and making them more comfortable.
I can't see Lemon-Glycerin swabs helping when even sips of cold water don't help - it just takes time - most of our pts are given Atropine in the early intraop phase to reduce oral secretions,leaving them with an intensely dry mouth when they wake up in PACU
I wish I had the exact resources but I fought this at the surgical hospital I recently left because I had read varying reports that these swabs do contribute to dry mouth and are damaging to the mucosa. When I would find them on the unit I would get rid of them because of that. And also because we dealt with healthy post-surgical patients who should be drinking fluids anyway.