Itchy dry throat cough, may be related to climatic factors, may also be due to upper respiratory tract infection, chronic pharyngitis and other reasons. 1. Climatic factors: common in the fall and winter seasons, due to the influence of climatic factors, resulting in too dry air, air humidity is low, if you fail to drink more water, it is easy to cause the throat itchy dry cough. 2. Upper respiratory tract infections: the disease is usually caused by viral infections, in the stimulation of pathogenic bacteria, easy to lead to the throat itchy dry cough, may also be accompanied by runny nose, nasal congestion, fever and other symptoms. 3. Chronic pharyngitis: the disease can lead to patients with inflammatory reaction of the mucous membrane parts of the throat, by the inflammatory products of the stimulation effect, may cause throat itchy dry cough, may also be accompanied by pharyngeal foreign body sensation, sore throat, nausea and other symptoms. Itchy dry throat cough, may also be allergic laryngitis, if the symptoms continue to be unable to alleviate, should be taken seriously, as soon as possible to seek medical attention, a clear diagnosis of triggers, guided by the doctor for treatment.