Testing for candida is useless. Garlic is good as it not only kills candida, but also helps your body get rid of mercury. cinnamon is also good to add to food to help fight candida. So is chamomile and peppermint. Oregano oil is strong stuff and tend to be expensive. It is great for sinus problems though. Other potent anticandidal supplements are olive leaf extract and grapefruit seed extract.