Help ward off worms with the Pampered Chicken Mama WormBGone Coop & Nesting Box Herbs. This blend of dried, natural herbs helps produce an environment that isn’t suitable for parasites. It’s made with natural materials that are suitable for use in chicken coops, such as calendula, rose petals, basil, rosemary and sage to promote a pleasant aroma. These herbs also promote scratching and other instinctive behaviors, and can be mixed with coop bedding or nesting box liners.