Thanks for your query.
He will need to use tablets(oral hypoglycemic agents) and insulin
. The doses will have to be titrated according to the blood sugar level. For this you will have to check blood sugar regularly and report the same to a physician who will the change the dosage accordingly.
Also visit a dietician who will recommend a fixed diet . Walking twicw a day foe 20 mins will also help reduce the sugar levels.
Hope this helps. Thank you!