Please describe the 'bad taste' associated with sinus drainage and/or infections?

Bad taste: This is a subjective assessment on the part of the individual experiencing it, but it is usually based on decaying tissues or the products of bacterial fermentation or growth that produces these tastes.

Bad Taste: As your sinus drains from inflammation or infection the fluid falls to the back of your throat - esp. At night. This in turn causes bad taste in your mouth as well as bad breath. Hope this helps.