Itchy throat with foreign body sensation is common in chronic pharyngitis, reflux pharyngitis, allergic pharyngitis and other diseases. 1. Chronic pharyngitis: stimulation of adverse factors, such as tobacco, alcohol, dust, etc., based on sinusitis, nasopharyngitis and other secretions of chronic stimulation can cause chronic pharyngitis, the pharynx can be a variety of discomforts, such as a foreign body sensation, burning sensation, dryness, itching, irritation, and a slight pain and so on. 2. Reflux pharyngitis: stomach contents backflow to the throat caused by dysfunction of the lower esophageal sphincter, patients will have heartburn, acid reflux, itchy throat, foreign body sensation and other symptoms. 3. Allergic pharyngitis: allergic patients can produce symptoms such as itchy throat and foreign body sensation in the throat after contacting allergens. Itchy throat with foreign body sensation may be caused by other factors, after the onset of the disease should actively seek medical attention to clarify the diagnosis.