Nicole, welcome and what a wonderful thing you did for that little baby! Don't worry about the licking .... it's a Yorkie thing ... caught Toto licking a doorfacing one day!
I think this too shall pass. We taught her the command "Puppy Kisses" ... so she does it on command. Thought it might stop her from doing it voluntarily ... slowed her down but didn't stop her!
They're just so sweet ... we don't mind!