I don't believe I did. I think at that point, my main concern was the fact that the inside of my cheek was sealed to my gum. But then again, I had done the salt rinse every day, a few times a day. Maybe that would help?
Maybe try brushing your teeth really well? Like, every area of your mouth as best you can, including tongue and the inside of your cheeks. That helped me.
It might just be whatever medicine you're taking leaving something behind somewhere. The medicine I took was nasty-tasting, and left an odd taste in my mouth.