Candida is a genus of yeast like fungi that are commonly part of the normal flora of the mouth, skin, intestinal tract, and vagina. It is a necessary bacterium as part of the normal flora for human health. The problems arise when candida becomes out of balance. Candida herbs specifically target fungus overgrowth. Since candida is a fungus, this means that candida herb is able to eradicate the fungal overgrowth at its source and help to balance and restore intestinal health.