I'm a bodybuilder and have easy access to "test" (as we call it). We use test to "stack" with anabolics. I have read that it somehow boosts the immune system to fight the candida. I had amazing results with it, as you said it works better than any antifungal I was ever prescribed. I never heard of lufenuron but did some googling and found a place where they sell it cheaply: http://lufenuroncandidacure.owndoc.com/
You said it inhibits chitin and I found that candida needs chitin in its cell wall so it makes sense.