The statement of what drugs are most feared by small cell lung cancer is unscientific. Clinically, according to different stages, radiotherapy and chemotherapy are synchronized, and chemotherapy and immunotherapy are the main integrated treatment strategies. Clinically, it is often categorized into limited stage and extensive stage according to the scope of lesion invasion. 1. Patients with limited stage, excluding contraindications to radiotherapy, and with good physical condition usually adopt the treatment strategy of radiotherapy and chemotherapy synchronization, while patients with poor physical condition can have chemotherapy and radiotherapy sequentially. 2. For patients with extensive stage, chemotherapy combined with immunotherapy is usually adopted as the comprehensive treatment plan for patients with good physical condition, while oral chemotherapy or symptomatic treatment can be considered for patients with poor physical condition. Commonly used chemotherapeutic drugs include etoposide, cisplatin, carboplatin, etc. Commonly used immunologic drugs include atilizumab, divalirubicin, etc. It is recommended to use under the guidance of doctors, avoid self-medication.