For brain metastasis of lung cancer, there is no special prescription in clinic at present, and the main treatments for patients with brain metastasis of lung cancer are local radiotherapy or surgical resection. Radiation therapy: Whether it is non-small cell lung cancer or small cell lung cancer with brain metastasis, radiation therapy can help to improve the tumor control rate and prolong the survival period of patients. Surgical resection: For isolated brain metastasis of lung cancer, resection of brain metastasis is feasible if the patient’s general condition is acceptable. If diagnosed with lung cancer brain metastasis, radiotherapy or surgical resection should be combined with systemic chemotherapy. It is recommended to go to regular hospitals for standardized treatment according to doctor’s prescription, and it is not advisable to take medicine without authorization in order to avoid delaying the condition.