Cough and throat tickling may be related to environmental factors stimulation, may also be due to acute pharyngitis, cough variant asthma and other causes. 1. Stimulation of environmental factors: for example, after exposure to cold air, special odors, pollen and other substances, it is likely to cause irritating cough and throat itching. When away from the irritating factors, the symptoms can be gradually relieved. 2. Acute pharyngitis: because the disease is mainly caused by viral infection, when the respiratory tract is attacked by viruses, resulting in pharyngeal mucosal congestion, edema, may cause cough, throat itchy, but also accompanied by runny nose, nasal congestion and other symptoms. 3. Cough variant asthma: the disease is a chronic inflammatory disease of the airways, usually due to the airways are stimulated by a variety of adverse factors, resulting in bronchial spasm, narrowing, thus causing cough, throat itch, may also be accompanied by wheezing, chest tightness and other symptoms. Cough and throat itch, may also be post-nasal drip syndrome, reflux pharyngitis and other causes, if the symptoms continue to fail to improve, it is recommended to seek medical attention as soon as possible, after a clear diagnosis, to give targeted treatment.