The yeast tends to thrive on high sugar and grows better when sugar is up.
I continue to have yeast problems despite yeast treatment. Blood sugar control is good, but I need it to be excellent.
My sister's experience was that she couldn't get rid of a yeast problem regardless of what treatment she tried until she went gluten free.
So that's my next step too.....
So get your blood sugar control very tight. Ask your doctor for prescription yeast treatment. Consider trial of gluten free diet.
Some ideas that may help you.
Recurring yeast infections CAN be one side effect of Type II diabetes, but they can have other causes as well.