Itchy surgical incision three months after lung cancer surgery can be treated by general treatment, medication and dietary regimen to reduce the itchy symptoms. Itchy surgical incision three months after lung cancer surgery is generally considered to be a symptom caused by proliferation and repair of tissues at the patient’s surgical incision, which can be treated in the following aspects. 1. General treatment mainly means avoiding scratching the itchy part with hands, so as not to aggravate the hyperplasia and make the itchiness more obvious due to the stimulation of scratching. 2. medication, mainly can be used externally povidone-iodine local topical disinfection to reduce itching, at the same time can be applied externally erythromycin ointment and other drugs with anti-inflammatory effect. 3. Dietary adjustments, mainly should pay attention to eat less spicy stimulating food, eat more mild, easy to digest food.