When I moved back here, I would get this every October, a result of the colder weather and the beginning of school. I wasn't sick, just could not talk, which pretty much eliminates being at work for a teacher. I did go to the doctor the first time and the one thing she told me was do not drink hot drinks! Keep sipping and drinking cool water all day. And don't talk! I kept trying to talk in a whisper voice, which made it worse.