Itchy throat of lung cancer patients is usually caused by cancer stimulation, or suffering from chronic pharyngitis, allergic factors and so on. Lung cancer patients usually show symptoms such as cough, blood in sputum, chest tightness, chest pain, fever, emaciation and so on, but not necessarily itchy throat. 1. Itchy throat caused by irritation of lung cancer: patients show dry cough without sputum or with small amount of sputum. 2. Chronic pharyngitis: patients show that there is a foreign body sensation in the throat, inhaling irritating air, eating spicy food, eating too salty are easy to aggravate chronic pharyngitis causing itchy throat and dry cough. 3. Allergic factors: Lung cancer patients inhaling irritating air or inhaling allergens can cause itchy throat and dry cough. Lung cancer patients with itchy throat should go to ENT department for examination in time, and treat the cause of itchy throat, do not take medicine blindly, and treat under the guidance of doctor’s consultation.