A tickling cough in the throat at night is commonly caused by allergic pharyngitis, but may also be due to gastroesophageal reflux disease, cough variant asthma and other causes. 1. Allergic pharyngitis: usually due to their own allergic body, sleeping at night by the cold air stimulation, or contact with the dust mites on the bedding or dust in the room, etc., may cause allergic coughing, thus showing a tickle in the throat at night cough. 2. Gastroesophageal reflux disease: the disease can lead to relaxation of the lower esophageal sphincter, which can easily cause gastric reflux, especially at night when you sleep in the lying position, it is easy to aggravate the gastric reflux, which can cause irritation to the throat area, which can be manifested as itchy cough in the throat at night. 3. Cough variant asthma: the disease belongs to a kind of airway allergic disease, especially in the night symptoms are particularly obvious, most considerations may be due to dust mites, dust, cotton wool and other sensitizing factors caused by stimulation, thus appearing in the night throat itchy cough. A tickling cough at night, but also for other reasons, it is recommended to consult a doctor as soon as possible, through the perfect relevant examination, diagnosis of the cause of the disease, to give targeted treatment.