Patients appear in the throat part of the nausea, dry heaving symptoms, feelings, often because of the existence of chronic inflammation of the throat, nasal cavity, sinus infection and other disease factors, as follows: 1, chronic inflammation of the throat: the patient also exists for a long time excessive use of the voice to speak, or even shouting, may also be subjected to the surrounding air pollution, or too much smoking, drinking, eating spicy and irritating food and other factors. May cause repeated pain in the throat, dryness, burning, foreign body sensation and other symptoms, may also be further nausea, dry heaving symptoms; 2, nasal cavity, sinus infection: mucopurulent nasal tract inflammation secretion may be repeatedly backflow into the pharynx, may also trigger nausea in the throat area, dry heaving symptoms occur.