Foreign body sensation in the throat belongs to pharyngeal anosmia, which is common in chronic pharyngitis, reflux pharyngolaryngitis, chronic tonsillitis, pharyngeal tumors and other diseases, which need to be examined to clarify the cause. 1. Chronic pharyngitis: chronic inflammation of the mucosa, submucosa and lymphatic tissue of the pharynx. Various discomforts in the pharynx, foreign body sensation, dryness, itchiness, are generally treated by quitting smoking and alcohol, improving the working and living environment, and local medication, such as gargling with compound borax solution. Silver and yellow tablets containing chemical treatment. 2. Reflux pharyngitis: the reflux of stomach contents stimulates the mucous membrane of the throat, causing discomfort in the throat, foreign body sensation and other symptoms. Generally, acid-suppressing drugs such as omeprazole should be used for treatment. 3. Chronic tonsillitis: persistent infectious inflammation of tonsils, which leads to redness and swelling of tonsil tissues, causing dry throat, itchy throat, foreign body sensation and other symptoms, such as recurrent episodes of surgical resection treatment. 4. Pharyngeal tumor is a benign or malignant tumor occurring in the pharynx, the swelling occupies in the pharynx, which will cause foreign body sensation and other phenomena, accompanied by pain, blood in sputum and other symptoms, which needs to be clarified through pathological and histological examination in time. Drugs must be applied under the guidance of a doctor. If you have any of the above conditions, you need to consult a doctor to clarify the cause of the disease and follow the doctor’s instructions for treatment.