It's apparent that no one REALLY knows the cause of acne. Every theory the medical profession comes up with has holes...testosterone? then why don't all MEN have it, as they have such a relatively large amount of the hormone? Oily skin? Then why is it some have Acne with dry skin, or oily skin without acne?
I believe there IS a reason, but it's rather low on the scientist's list of priorities as it is non-fatal, non-debilitating (at least physically, if not emotionally) and generally regarded as a minor, transient problem for most.
I guess it really is up to us, since those of us affected are the only ones who care so much.
The only question I have for you is, were you tested for all THREE types of candida? Anti-candida supplements have been the only real help I've discovered.