The causes of children’s cervical lymph node enlargement 2cm include inflammation, lymphoma and so on, need to clarify the cause of the cause of active treatment, mainly drug treatment. 1. Inflammation: when the neck tissues and organs are infected, such as pharyngitis, tonsillitis and other inflammation, the inflammation will stimulate the lymph nodes to cause enlargement, and antibiotics such as penicillin, erythromycin and other medicines can be taken to control the inflammation and improve the symptoms. 2. Lymphoma: children with lymphoma will show painless lymph node enlargement, need to standardize the treatment according to the type of lymphoma, the common treatment plan is chemotherapy, the choice of chemotherapeutic drugs include vincristine, cisplatin, cytarabine, fluorouracil and so on. Due to individual differences and the diversity of causes, it is recommended that children with enlarged lymph nodes in the neck go to the hospital in time to find out the cause of the disease, actively cooperate with the doctor to receive standardized treatment, choose the right treatment plan for themselves, and consult a doctor in time after an adverse reaction to the drug, and drug allergy is prohibited from using the drug.