Andreas reasoning is a valid one - the only reason why pathogens are able to make home in the human body is due to toxin/waste accumulation and weakening of the immune system (which is due to toxins).
Fighting candida or any other organisms will not address the root cause as to why they are thriving in the body. Also the emotional mindset that goes with the focus on fighting and killing something may also bring unwanted emotional baggage into play.
Many people feel better after taking antifungals only to find themselves riddled with candida shortly after - which indicates that the body's environment is still out of balance, allowing organisms to resurface.
Cleansing the body of waste will change the environment in a way that overgrown organisms may not be able to thrive (no food/home). Strenghthing the immune system after cleansing, as in reestabilishing the beneficial flora in the gut will bring balance afterwards (probiotics will overcrowd the gut, normalizing candida levels). It is hard to reestabilish good gut ecology when the internal environment is riddled with waste though(undigested food, heavy metals, chemicals, holding on to memories that trigger anger, fear etc).