It is confirmed that it is diabetes
.Consult a best diabetologist
. so they can advise few medicine to get it controlled since intially to control these are required. if her first doses of medicine are able to control it, it is good & keep regular checks on sugar level at least once in a month.
her diet plays a major rule in diabetic . so she has to restrict her charbhohydrate intake & fill her meals with protein rich & fiberous foods like raw salads.
do regular exercises at one's comfort level to keep your metablosim & horomones refreshing.
Dont get stressed & panic.
If she take few steps to modify her life style she can manage her diabetic with mild dosage of medicines / without