Virgin & suffer in viginal cardidiasis.

I am virgin never have any sexual intercourse but I suffer in viginal candidiasis problem few years. Pharmaticst recommend me to use viginal wash. At first, it have reduce my itching, but the symtoms persisted and worsened. The amount of greenish-yellow viginal discharged increased, and the inside of my viginal is bcoming more irritated with unpleasen smell. I went to see doctor and they  prescribed me 3 doses of antifungal mecdication 150mg flucanozole for (1,4,7 days). They don't allow me to perform viginal discharged test since I'm virgin. The symptom still persist after consuming fucanozole and they gave me 3 doses of flucanozole again. I then sought out Chinese medicine, they said my symptoms were caused by a weakened immune system. She advised me to enhance my exercise and eat healthily to strengthen my immune system. My period is normal, often changed and washed my panties. I was wondering, how to get rid of this infection?