Sudden tickling of the throat and want to cough, may be related to the normal cough reflex, may also be due to allergic pharyngitis, acute bronchitis attack, etc. Caused by. 1. Cough reflex: For example, if the throat area is suddenly stimulated by dust, smoke, chili peppers and other substances, it will cause a cough reflex, which will lead to a sudden tickle in the throat and coughing, which is a normal physiological phenomenon and does not require special intervention. 2. Allergic pharyngitis: common in allergic body, in sudden contact with animal fur, dust mites, pollen and other substances of stimulation, is likely to induce allergic pharyngitis, will show a sudden tickle in the throat, want to cough, but also can be accompanied by respiratory effort, pharyngeal sensation of foreign bodies and other manifestations. 3. Acute bronchitis attack: usually due to sudden cold air stimulation, or sudden inhalation of irritating gases, dust and other substances, the formation of the trachea, bronchial tube stimulation, thus inducing an acute bronchitis attack, there may be a sudden tickle in the throat, want to cough. Suddenly throat itchy cough, may also be caused by other reasons, if the symptoms continue to be unable to alleviate, it is recommended to seek medical advice as soon as possible, after diagnosis of the causative factors, by the doctor’s guidance to give targeted treatment and conditioning.