How many days it takes for a child to recover from mesenteric lymphadenitis depends on the severity of the child’s condition and the individual’s constitution, and should be analyzed on a case-by-case basis. If the baby’s symptoms are mild and no abdominal pain or only mild abdominal pain occurs, the baby can gradually improve after a week of treatment with anti-inflammatory drugs, and it takes about 2 months to fully recover, so parents are advised to pay attention to close observation. If the baby’s symptoms are more serious, vomiting, fever, abdominal pain and other symptoms appear, ultrasound examination indicates that there are more enlarged lymph nodes on the mesentery, or routine blood test shows high blood picture. Its specific recovery time varies from person to person, and the symptoms can be stabilized after treatment with symptomatic medication. During the treatment period, parents are advised to pay attention to the child’s dietary hygiene to reduce intestinal infections. In addition, the child should avoid spicy and cold foods and keep the abdomen warm.