Parasites may be involved in Crohn's disease, ulcerative colitis, and arthritis symptoms. They could also be linked to food or environmental allergies that develop for no apparent reason. What to do Although natural and herbal remedies abounded in earlier times, drugs are now generally prescribed for parasites. Unfortunately, many drugs are not as effective as they once were. According to Louis Parrish, M.D., Flagyl, a first-line killer of protozoa, is only 5 percent effective.
Most drugs also come with a long list of side effects.
Many health practitioners now recommend herbal remedies. These remedies use a number of herbs with antiparasitic properties. Dr. Skye Weintraub is a naturopathic physician practicing in Eugene, Oregon. She specializes in digestive problems, food and environmental allergies, and parasites. She is the author of several books including The Parasite Menace, Allergies and Holistic Healing, Natural Treatments for ADD and Hyperactivity, and Natural Healing with Cell Salts.