Diabetes is a lifelong disease and is not curable. This is because there is only one hormone in the body that lowers blood sugar, namely insulin, while there are multiple hormones that raise blood sugar. When you have diabetes, you must have a problem with the function of the pancreas islets. The pancreas needs insulin treatment for life because the viral infection and immunization have destroyed all of the islet function and there is no insulin secretion. In addition, type 2 diabetes is because the islets are relatively under-functioning, destroying part of them, and 50% of them are still functional. There is also a part because insulin secretion is more than normal, but it cannot lower sugar because of its bad quality, and it belongs to type 2 diabetes, whose islet function is gradually destroyed in the years to come, and the islet function is not recoverable, so diabetes is not curable. There is no expiration date value for diabetes treatment, it must be a lifelong treatment, only whether it is medicine or insulin should be discussed with the doctor in charge.