Coughing and tickling throat may be caused by allergic laryngitis, acute and chronic pharyngitis, reflux pharyngitis, bronchitis and so on. 1. Allergic pharyngolaryngitis: patients who are allergic, after contact with allergens, such as pollen, dust mites, animal fur and so on. It triggers the phenomenon of throat discomfort appearing throat itching, and then irritating dry cough occurs. 2. Acute and chronic pharyngolaryngitis: If acute and chronic pharyngolaryngitis occurs, the mucous membrane of the throat is congested and edematous, and the nerves are stimulated by inflammatory factors and secretions, which may cause coughing and itchy throat. 3. Reflux laryngitis: the reflux of gastroesophageal reflux disease stimulates the wall of the pharynx, and the secretion enters into the pharynx, which stimulates coughing and tickling of the throat. 4. Bronchitis: such as chronic bronchitis, bronchial asthma, cough variant asthma with cough as the only symptom, will appear cough, itchy throat. When the patient has a cough itchy throat, should actively go to the regular hospital, improve the relevant examination, a clear diagnosis, under the guidance of professional doctors to take targeted treatment.