The methods for treating high blood sugar in dogs are as follows:

Food therapy. Improve the dog's diet, feed more meat, milk and other low-carbohydrate foods, increase the fiber content in the food, promote intestinal peristalsis, shorten the time that food stays in the intestines, and avoid the occurrence of postprandial hyperglycemia.

Drug therapy. Choose drugs such as insulin injection or oral chlorsulfanil. The specific drug dose should be selected under the guidance of a doctor according to the dog’s condition.

Exercise therapy. If the dog is also obese, you need to take the dog to exercise more to enhance the dog's physical fitness, strengthen muscles, and optimize weight.