Keep the BG's as low as possible and visit GP for a proper diagnosis and treatment plan with meds. After that you may find Cuticura medicated talc after your daily bath could make all the difference.
Come back in a few weeks and let us know how you are getting on
I suffered thrush for years before diagnosis - GP put it down to my hysterectomy!!
Since I've started to reduce my BG levels, after diagnosis as Type 2 in May, I get through half as much Canestan cream as I used to QED - high BG's = thrush!
Canestan can be expensive, so in between applications I also use Suducrem (often used for nappy rash!) to relieve the itching.