See below: Bad-tasting mucus drainage might come from infected sinuses (do u have any pain or pressure over sinus areas?), throat infection, dental abscess. Any fever? If u have any tooth decay, see dentist. Otherwise, see pcp if fever &/or sinus pain/pressure. May be viral in origin in which case antibiotics are useless but doc can test for strep, which responds to antibiotics.
Answered 9/1/2015
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