Comfrey is an herb that mostly grows in England and Wales and has been used in folk medicine for centuries primarily to heal wounds and broken bones. The most medicinally active ingredient in Comfrey is its Mucilage, a sticky substance in its roots and stems. Its Mucilage is used as an emollient, an astringent and expectorant. It’s often used as a gentle remedy for dysentery and diarrhea. It’s also affective for soothing coughs and even internal hemorrhages. As a topical agent Comfrey can be applied to sprains, strains, swelling and bruises. A Comfrey poultice can help heal cuts, boils, abscess and ulcers.