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•A bitter taste may result from dehydration, glossitis, a dry mouth, allergies, salivary glands infections, lack of zinc and vitamin B12, and polyps in the nose.
•Others include breathing through the mouth, inflamed upper airways, and autoimmune diseases like Sjogren's syndrome and Bell's palsy.
•Some injuries and traumas that cause a bitter taste include head, nerve, mouth and nose injuries, and biting your tongue.
•Dental appliances such as braces, any surgery on your ear, nose, teeth or throat, and radiation therapy on your neck or head cause a bitter taste in mouth.
•Gargle with water. Brush your teeth, tongue, roof of your mouth, and gums using toothpaste. Rinse your mouth with mouthwash. Drink liquids, chew sugar-free gum or mints, or suck on sour candies. Use plastic utensils if you have bitter taste when eating.
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