Nine months post treatment I still have that "hairball" in my throat. And you are correct, nothing will get rid of it. The MO gave me a name for it, but I have forgotten what it was and I didn't write it down. Darn. However, as time goes on, it is less annoying. Good luck with teaching, it was my experience that getting back to my normal activities as soon as you can helps put these after affects on the back burner in our mind.