There are many herbs that kill yeast, the problem is that some are so strong that you might get very strong side effects while taking them. Here is a partial list.
The raw garlic, clove oil, olive leaf extract, and grapefruit seed extract might produce the strongest symptoms, as they are probably the strongest candida killers. As the candida die, they release toxins, which could make you feel much worse. If you can tolerate them then use some or all of them, otherwise use just the milder herbs such as licorice root, cinnamon, ginger, peppermint and chamomile. If you use a few of these herbs they may be more effective and have a synergistic effect.

1) Raw garlic- very inexpensive. Kills yeast, bacteria, viruses, parasites. Can irritate the digestive tract so don't take too much at once. One clove(section) at the end of each meal is what I recommend. Cut it into small pieces, chew each one well, and swallow it with plenty of water.

http://www.herbwisdom.com/herb-garlic.html

2) Clove- this spice needs to be very fresh to work. It also kills bacteria, viruses, and parasites. I am using clove oil now. Clove oil needs to be taken with care, as large doses can be toxic. I put three drops in half a cup of water and stir it well. I take this 2 or 3 times a day.

3) Licorice root- This herb kills yeast , stimulates the adrenals, and helps detoxify the liver. Can elevate blood pressure, so don't take too much. It is also a mild laxative. Licorice root tea tastes great!

http://www.herbwisdom.com/herb-licorice-root.html


4) Cinnamon- This herb tastes great and has many medicinal properties including killing yeast.

http://www.herbwisdom.com/herb-cinnamon.html

5)Ginger-kills yeast. Also great to help solve digestive problems.

http://www.herbwisdom.com/herb-ginger-root.html

6)Peppermint- kills yeast. Good for digestive problems.

7)chamomile
http://www.herbwisdom.com/herb-chamomile.html


These are just some of them. There are others such as olive leaf, cardamom, tahebo(usually used as tea),grapefruit seed extract(put 10 drops in a glass of water and stir well), coconut oil,and caprylic acid.