Tickling throat is always coughing, may be related to environmental factors stimulation, may also be due to allergic pharyngitis, chronic pharyngitis and other reasons. 1. Environmental factors: commonly found in dust stimulation, due to work reasons if prolonged contact with dust, dust stimulation, may cause a tickle in the throat always cough. 2. Allergic pharyngitis: common in allergic body, in contact with pollen, dust and other objects, is likely to cause an allergic reaction, may show a tickle in the throat is always coughing. 3. Chronic pharyngitis: due to the presence of inflammation in the mucous membrane of the throat of patients with this disease, under the stimulating effect of inflammatory factors, leading to dry and itchy throat, resulting in a tickle in the throat is always coughing, but also may be accompanied by pharyngeal pain, pharyngeal sensation of foreign bodies and other symptoms. Tickling throat is always coughing is also seen in other causes, it is recommended to consult a doctor as soon as possible to identify the cause, under the guidance of the doctor standardized treatment.