Feeling nausea with a foreign body sensation in the throat may be caused by chronic pharyngitis, reflux pharyngitis, postnasal drip syndrome, epiglottis cyst and other diseases. 1. Chronic pharyngitis: chronic inflammation of the pharyngeal mucosa, submucosa and lymphatic tissue. Foreign body sensation, itching, burning and dryness in the pharynx, irritating cough with nausea in the posterior wall of the pharynx due to stimulation of mucous secretion. 2. Reflux pharyngitis: gastric contents reflux into the throat, stimulating the mucous membrane of the throat, resulting in foreign body sensation in the throat, cough, nausea, hoarseness and other discomforts. 3. Postnasal drip syndrome: it refers to the reflux of nasal inflammatory secretion in patients with rhinitis and sinusitis, which flows into nasopharynx, oropharynx and laryngopharynx through the posterior nostril, causing irritation to the mucous membrane of the pharynx, and giving rise to foreign body sensation in the pharynx, cough, nausea and other symptoms. 4. Epiglottis cyst: epiglottis is located at the root of the tongue and the root of the tongue above the body, so the epiglottis cysts, can lead to a foreign body sensation in the throat and nausea. The symptoms of nausea and foreign body sensation in the throat are recommended to consult the hospital for diagnosis and treatment.