Throat refers to the pharynx, which includes the pharynx and larynx. Dry, itchy cough in the throat is commonly caused by chronic pharyngitis, bronchitis, allergic pharyngitis and other diseases. 1. Chronic pharyngitis: refers to the diffuse chronic inflammation of the pharyngeal mucosa, submucosa and lymphatic tissue, the patient can be due to the back wall of the pharynx mucous secretion stimulation, resulting in dry and itchy throat symptoms, inflammatory secretion stimulation of the patient’s pharynx can also cause the patient to cough, usually accompanied by pain, pharyngeal sensation of foreign bodies and other symptoms. 2. Bronchitis: Bronchitis can be induced by recurrent viral and bacterial infections, cold air, smoking and so on. The bronchial tubes are stimulated by inflammation, and the symptoms of dryness, itching and coughing in the throat may appear, which may also be accompanied by coughing up phlegm and nasal congestion. 3. Allergic pharyngitis: when patients inhale certain allergens, such as pollen or animal fur and other substances, they can cause allergic reactions to the throat, which can also trigger the patient’s throat dryness, itching, coughing and other respiratory manifestations, and in severe cases, it can also cause laryngeal edema, wheezing, etc. In addition, pneumonia, upper respiratory tract infections and other diseases can also be caused. In addition, pneumonia, upper respiratory tract infection, pharyngeal tumors, etc. can also appear cough, dry and itchy throat symptoms, if the symptoms can not be relieved or persistent aggravation, you should consult a doctor in a timely manner to find out the cause of the disease, and comply with the doctor’s instructions for appropriate treatment.