There are many reasons for a tickling cough, not necessarily caused by the lungs, but also allergic pharyngitis, reflux esophagitis, and the effects of medications. 1. Allergic pharyngitis: mostly seen at night or early in the morning, discomfort in the throat, difficult to suppress the desire to cough, but usually no phlegm coughed up, and later on, the tickling discomfort in the throat. 2. Reflux esophagitis: due to reflux stimulation can be caused by the throat itchy cough symptoms. 3. Drug effects: such as captopril and other angiotensin inhibiting enzyme drugs, its common adverse reaction is the stimulation of dry cough, the phenomenon of tickling throat cough. So, although the respiratory tract infection leads to inflammation of the lungs, there will be a tickling cough, but can not be excluded from the above reasons, it is recommended that the tickling cough in a timely manner to the doctor, to clarify the cause of the disease, standardized treatment under the guidance of the doctor.