The risk period for patients with severe pancreatitis is usually 2-3 weeks after the onset of the disease, and after effective treatment, if the patient’s condition remains stable and improves, the patient will pass the risk period. Severe pancreatitis is a serious clinical disease, if not treated in a timely manner or improperly treated, it can lead to acute respiratory distress syndrome, renal failure, cardiopulmonary failure, etc., and in severe cases, it can even lead to death. Generally, 2-3 weeks after the onset of the disease are the risk period. In addition, the disease is often treated with surgery, and postoperative infection is a major factor affecting the recovery process and the survival rate of patients. Some studies have shown that in patients with severe pancreatitis, the total postoperative infection rate is as high as 30%, and most infections occur within 3 weeks after surgery, such as peripancreatic abscesses and pancreatic necrosis. Therefore, for patients with severe pancreatitis, in addition to the need for timely standardized treatment, the daily care process also strengthens patient monitoring measures and focuses on nutritional supplement intake to prevent complications.