The symptoms of phlegm in the throat and nausea and vomiting are often caused by chronic inflammation of the throat. Chronic inflammation of the throat is often caused by excessive use of the voice, smoking, drinking alcohol, eating spicy and stimulating diets, and other factors. There may also be mucopurulent secretions adhering to the localized part of the throat, which may easily cause the patient to experience foreign body sensation, phlegm congestion, dryness and other uncomfortable symptoms in the throat. Some patients may have nasal cavity, sinus area inflammatory infectious disease conditions, mucopurulent nasal secretions may repeatedly backflow into the throat, can also cause phlegm in the throat, as well as nausea, vomiting symptoms, need to pay attention to further detailed examination.