Radiotherapy can be considered for locally advanced lung cancer, which can help to kill tumor cells, shrink tumor foci and improve the prognosis of the disease, and it needs to be carried out in accordance with doctor’s prescription. Radiotherapy refers to irradiating local diseases with radiation, which can eliminate local tumor foci to a certain extent, thus improving patients’ life quality and prolonging their survival time. Adverse reactions such as nausea, vomiting, anemia, fever, skin damage, radiation pneumonia and so on may occur in the course of radiotherapy, which need to be treated in a standardized way under the guidance of doctors and need to be treated by doctors in time after the occurrence of adverse reactions. Therefore, patients with advanced localized lung cancer can undergo radiotherapy, and it is recommended that patients relax their mind and actively cooperate with doctors to receive treatment.