It is difficult to recover from pancreatic islet function damage, but the following methods help to recover: first, diet, second, exercise, and third, medication. First, diet is mainly to eat low glycemic index food, such as not drinking porridge, not eating sweet things. Second, exercise, mainly after eating to start activities, generally speaking, to walk or jog mainly, the time is about 20-30 minutes. Thirdly, medication, mainly insulin replacement therapy, so that their own pancreatic islet function fully rest. There are also some oral hypoglycemic drugs can be, such as acarbose, metformin, etc., good blood sugar control is conducive to the recovery of pancreatic islet function.