A strong tickling cough at night may be related to allergies, or it may be caused by cough variant asthma, post-nasal drip syndrome and other reasons. 1. Allergy: Commonly found in people with allergic body, when sleeping at night due to contact with dust in the room, bedding dust mites and other substances, it is likely to cause allergic reactions, which may be manifested in the night itchy throat, coughing badly. 2. Cough variant asthma: this disease can lead to increased airway sensitivity, resulting in increased airway reactivity, in the night time when sleeping by dust mites, cold air and other factors of stimulation, may show a tickle in the throat, coughing, and even severe cases may be accompanied by shortness of breath, wheezing and other manifestations. 3. Postnasal drip syndrome: the disease is usually due to the presence of nasal lesions, resulting in nasal secretions backflow into the throat, the formation of throat stimulation, will cause itchy throat, cough. Especially at night the body is in a prone state, it will show the itchy throat, cough strong. Itchy throat and cough at night, may also be reflux pharynx and other causes, it is recommended to consult a doctor as soon as possible, after a clear diagnosis, under the guidance of the doctor for treatment.