I have been using Listerine's ZERO mouth wash for a couple days now, and I have noticed some sloughing of the insides of my cheek.

Also when I wake up there is this slimey residue inside my mouth.

My mouth is fresh and odor free, but the only thing that concerns me is the skin peeling on the insides of my cheek. It doesn't hurt at all, but just a bit concerning.

Should I stop using it? Will it be harmful if I continue to use it?
This is a non alcoholic mouthwash and was recommended by my dentist, so I'm not sure why this is happening.

Please advise. Thank you.