I have been experiencing bad breath for the past 2 years.On consulting a doctor I was told that it is due to the secretion of a white fluid on the side of my throat - sinus glands.This secretion becomes hard and gets attached to the gland.Till the hard secretion comes out of the gland the bad breath remains.Once that comes out due to my coughing or sneezing the smell disappears.After a few days the whole process starts again.Is there a permanant remedy to this.I was to do mouth wash with LISTERINE daily.This doesnt help either.When I talk the smell appears again.