Postnasal drip is the accumulation of mucus in the back of the nose and throat, causing the sensation of secretions dripping downward through the back of the nose. Postnasal drip is a common finding with rhinitis, or inflammation of the airways within the nose. Accompanying symptoms can include sore throat, stuffy nose, runny nose, cough, throat clearing, sneezing, and an itching feeling in the nose. If sinus infection is also present, headache and facial tenderness can occur. Severe infections can be associated with fever and chills. Watery eyes, fatigue, poor sense of smell, and puffiness under the eyes can be other symptoms seen with postnasal drip.