A bolus is like a suppository, used either vaginally or anally. Dr Schulze created a bolus of Squaw Vine herb, Slippery Elm Bark, Goldenseal root, Yellow Dock root, Comfrey root, Marshmallow root, Chickweed herb, Mullein leaf, Garlic bulb and Coconut and Tea Tree oil. Some boluses can be made into suppositories by mixing the materials and placing them into the freezer. These would be used for cervical problems.