Each time I use Listerine Total Care, about an hour or so later I have white, stringy, filmy stuff in my mouth lining my gums and hanging in between my teeth. I don't know what it is but I read in a product review in which the user was complaining of a very similar side-effect that the stringy stuff was the mucous membranes peeling. Does this sound correct - mucous membranes peeling being a side-effect of using Listerine Total Care - and if so is this normal, and is the peeling harmless or ruining my mouth? Thank you for your help!