Darood/Salavat 3 times

Surah Beni Isreal (Quran Chap 15) 

"Rabbe id khilni mad khal sid ka va akh rijni makhraja vaj al li min ladunka sultan nin naseeran"

Read the ayet 3 times only. then after that 

3 times darood/Salavat

Then do dam(blow) on glass of water and drink it. Do this until you are ok or the patient. You will see how it will cure sugar. Feel free to check your blood sugar level to see the effects of the ayet every day or weekly.

Second benefit of this ayet is that anyone who will drink the water will start salah 5 times a day.