In the case of lesser damage to the pancreatic islet function, it can be restored through diet and exercise therapy, and medication (e.g. metformin, insulin, etc.) if necessary. 1. Diet control: Controlling the total intake, avoiding high sugar content food, such as cakes, chocolates, etc., as well as actively engaging in exercise, can help the recovery of pancreatic islet function. 2. Application of drugs: When blood sugar rises acutely, the application of insulin can make the pancreatic islets get proper rest, which can help the recovery of pancreatic islet function, and other drugs such as metformin, pioglitazone, etc. can improve the insulin sensitivity. All of the above drugs need to be used according to the condition under the guidance of a doctor. After the pancreatic islet function is impaired, it is recommended to go to the regular hospital in time and under the guidance of the doctor for treatment.