Mucous is your body's way of trying to heal itself. Your mouth and throat are so irritated that your body creates the fluid to try and soothe it. The vaporisor is a very good tool. I used one too during and after treatment for a bit. It helped greatly because it helps do what the mucous does. And then there is the handy dandy waterpik... breaks up the guck and freshens!
And yes i say that often, and NO i do not have shares or work for waterpik! I still use mine twice a day to clean along my gum like and get the plaque. So far so good - my dentist still likes me.