Itchy throat with violent coughing accompanied by dry heaving is mainly considered to be caused by respiratory allergies. Exposure to irritating gases, pollen and other allergy-prone substances can cause this symptom. It is necessary to leave this environment immediately, and the symptoms will be relieved on their own if they are not very serious. If the symptoms are more serious, they need to be actively treated with anti-allergy drugs. If not treated in time, it is easy to cause edema and congestion in the throat, which can cause chest tightness and difficulty in breathing, and in serious cases, it can affect the life. If this symptom occurs repeatedly, you also need to go to the hospital to find allergens and avoid contact with allergens according to the test results. It is also necessary to pay attention to diet and rest, and to actively exercise to improve the body’s resistance, so as to prevent recurrent attacks.