When your blood glucose levels return to normal, you should begin to feel better immediately. If unconscious, you should regain consciousness shortly after therapy starts. You might sustain some brain damage if the symptoms persisted for a while before treatment or if you fell into a diabetic coma and remained there for many hours or longer. A diabetic coma left untreated could be fatal. People who receive immediate medical attention for a diabetic coma typically make a complete recovery. Your doctor could advise you to wear a medical identity bracelet detailing your diabetes and other health issues. This could ensure that you receive prompt treatment for any potential problems in the future. Your doctor will work with you to create a diabetes treatment plan if you go into a diabetic coma before realizing you have the disease. This will involve medication as well as diet and exercise recommendations.