The treatment for swollen lymph nodes in the neck of children differs according to the cause of the swollen lymph nodes. If the swollen lymph nodes in the neck are caused by acute tonsillitis, oral ulcer, acute pharyngitis and subacute thyroiditis, the child needs to actively strengthen anti-infection treatment and apply topical gold ointment to the swollen lymph nodes, and most of the swollen lymph nodes can slowly subside after the inflammation is controlled. If the swollen lymph nodes in the neck are caused by tumor lesions, such as non-Hodgkin’s lymphoma, lung malignancy, gastric malignancy, breast malignancy, etc., the prognosis of the child in this case is poor, and a combination of resection of the primary lesion and chemotherapy is often needed to remove the tumor lesion and prolong the life of the patient.