Lymph node fever may be an infection, so it is important to pay attention to timely anti-inflammation after the appearance of lymph node fever, and also pay attention to the treatment with antipyretic drugs, cephalosporin antibiotics and erythromycin can play a therapeutic role. Most of the time, lymph nodes do not have fever, but if they do, it is likely to be caused by inflammation and suppuration of the lymph nodes, so it is important to check immediately for suppuration. If the inflammation is serious, pus may appear, and care should be taken to remove the pus to reduce inflammation. A series of complications caused by the flu may also cause swollen lymph nodes and fever in the lymph nodes due to the swelling of immune organs and fever caused by the flu.