Itchy throat and cough can be caused by adverse factors, allergic pharyngitis, chronic pharyngitis, reflux pharyngitis and other factors. 1. Undesirable factors: such as severe dehydration, poor surroundings, the presence of smoke and irritating odors, etc., may cause irritation to the throat area, which can cause symptoms of itchy throat and cough. 2. Allergic pharyngitis: when there is an allergic reaction, resulting in chronic inflammation of the mucous membrane of the throat and other parts of the chronic inflammatory reaction, there will be a tickle in the throat want to cough symptoms, may also be accompanied by pharyngeal pain, dysphagia, pharyngeal sensation of foreign bodies and other symptoms. 3. Chronic pharyngitis: may be caused by repeated episodes of acute pharyngitis, may also be associated with poor dietary habits, environmental factors, in the stimulation of inflammation, resulting in pharyngeal dry itching, pain, the presence of a foreign body sensation, resulting in an itchy throat want to cough, but also may be accompanied by nausea, dry heaving and other symptoms. 4. Reflux pharyngitis: may be related to direct stimulation, nerve reflexes and other factors, gastric reflux to the throat, the throat repeatedly caused by stimulation, will cause the throat itchy cough, may also be accompanied by dry throat, sore throat and other symptoms. Itchy throat cough, may also be caused by other reasons, if the symptoms continue to be unable to alleviate, should seek medical attention as soon as possible, to clarify the cause of the disease, to give targeted treatment.