If your child’s mesenteric lymph nodes are caused by a bacterial infection, they can be treated with sensitive antibiotics such as cefixime and cefdinir; if they are caused by a virus, they are usually treated symptomatically and do not require special medication. Mesenteric lymphadenitis in children is mostly caused by upper respiratory or intestinal infections, resulting in reactive lymph node hyperplasia, and children often have fever and abdominal pain. If it is clearly caused by a bacterial infection, it can be treated with sensitive antibiotics such as cefixime and cefdinir. If it is caused by a virus, it is usually treated symptomatically and does not require special medication. Physical cooling, such as warm baths, or medication, such as ibuprofen suspension to reduce fever when the temperature is ≥38.5℃, and acetaminophen for severe abdominal pain, can be used as prescribed by the doctor. In addition, it is recommended that the child should maintain a light diet, small and frequent meals, adequate rest, and avoid strenuous exercise or exertion to promote physical recovery. If the child’s symptoms do not improve through medication, it is recommended to seek medical attention to address the cause of the disease. The above medications should be used in accordance with medical advice.