The causes of enlarged lymph nodes include infections, tumors, connective tissue diseases, etc. Different treatments need to be given according to different causes. 1. Infection: If the lymph nodes are swollen due to bacterial or viral infection, the lymph nodes will be enlarged. For viral lymph node enlargement, you can take acyclovir, ganciclovir and other medicines under doctor’s guidance; for bacterial infection, you can take antibiotics such as amoxicillin, cefixime and other antibiotics, and intravenous anti-infective treatment can be given if necessary. For tuberculous lymphadenitis, isoniazid, rifampicin, ethambutol and other anti-tuberculosis drugs can be taken as prescribed by the doctor. 2. Tumor: It is commonly caused by lymphocytic leukemia, lymphoma, or lymphatic metastasis of other malignant tumors, such as lung cancer, gastric cancer, intestinal cancer and so on. At this time, surgery, radiotherapy, chemotherapy (e.g. adriamycin, mitomycin, etc.), targeted therapy, bone marrow transplantation and other series of treatments should be carried out according to the doctor’s instruction after clear diagnosis. 3. Connective tissue disease: common in systemic lupus erythematosus, nodular disease, etc. Glucocorticoids (such as prednisone, etc.), immunomodulators (such as interferon) and other treatments can be taken according to medical advice. Patients with enlarged lymph nodes are advised to follow the doctor’s instructions for treatment after a clear diagnosis, so as not to delay the condition.