Lymphadenitis in children may heal on its own, but the exact time of healing depends on the severity of the child’s condition and his or her resistance, and cannot be generalized. The lymph nodes are important organs in the body to fight disease, enlarging when invaded by germs and serving as a self-defense function that can swallow viruses and bacteria. Usually, if a child has mild symptoms, only mild enlargement of lymph nodes and no other physical discomfort, he or she can recover on his or her own in 7-15 days. However, the lymph nodes have limited resistance, so if too many germs enter the body, the lymph nodes will become pathologically enlarged, and the body will then experience fever, night sweats, and fatigue, etc. This condition cannot heal on its own and requires immediate and aggressive treatment at a pediatric hospital. Pediatric lymphadenitis can be treated with broad-spectrum cephalosporin intravenously as prescribed by the doctor to control the infection. If the lymph node pain is significant, appropriate pain medication, commonly celecoxib, may be given. In addition, the child should drink more water and eat more fresh fruits and vegetables to ensure the daily caloric intake.