Patients with lymph nodes, if they experience short-term lymph node enlargement. It could potentially be a symptom of metastatic cancer of the lymph nodes, typically manifested in cancers of the nose, pharynx, lung, and esophagus. If the condition is severe, it may cause pain. If the disease spreads to the ear, a comprehensive examination of the patient is still necessary to find the root of the disease. Once the patient's disease begins to metastasize, it indicates that the cancer has reached an advanced stage, and it is recommended that the patient undergo comprehensive treatment with radiotherapy and chemotherapy. If it is non-small cell lung cancer, targeted drug therapy is recommended, but it is generally advised to perform a targeted drug test in advance. If the mutation allows, it is permissible to take the medication; if there is no mutation, it is better not to use it.