Children with enlarged lymph nodes in front of the ear may be triggered by inflammation such as otitis media, sinusitis, etc. It may also be caused by tumors such as lymphoma and lymph node metastasis of malignant tumors, etc. Specific treatment measures need to be formulated in conjunction with the baby’s condition. 1. Inflammation: Due to the rich distribution of facial nerves and blood vessels, when the children themselves have otitis media, nasal tract inflammation and other chronic inflammatory injuries, it may stimulate the lymph nodes in the head and neck, such as pre-auricular lymph nodes appear swollen and so on. For the presence of bacterial infection, anti-infection treatment can be carried out by taking antibiotics, such as penicillin, cefixime and so on. 2. Tumor: the persistent enlargement of pre-auricular lymph nodes also needs to consider whether there is local neoplastic disease, which can be determined by imaging or pathological examination, such as malignant tumors, need to be treated with surgery, chemotherapy, radiotherapy and other comprehensive treatment. Children with persistent growth of pre-auricular lymph nodes or lymph nodes in other parts of the body should go to the hospital in time for hematological and imaging examinations, and under the guidance of doctors for regular diagnosis and treatment.