Herbs are a way to strengthen and tone the body’s systems. As with any therapy, you should work with your doctor to diagnose your problem before starting treatment. You may use herbs as dried extracts (capsules, powders, or teas), glycerites (glycerine extracts), or tinctures (alcohol extracts). People with a history of alcoholism should not take tinctures. Many of the herbs used to treat intestinal parasites have toxic side effects or interfere with other medications. Use them only under the supervision of a qualified practitioner. Your health care provider should treat you with the most gentle herb that is effective for the type of parasite you have. A few of the herbs that your provider might consider include: * Garlic (Allium sativum) * Barberry (Berberis vulgaris) * Goldenseal (Hydrastis canadensis) * Oregon grape (Berberis aquifolium) * Anise (Pimpinella anisum) * Worm-wood ((Artemisia annua)) * Curled mint (Mentha crispa) * Black walnuts (Juglans nigra)