Comfrey is a perennial herb of the Boraginaceae family. It is a powerful tonic and one of the best agents for promoting tissue growth externally and internally, and whole-body healing - especially if affected by traumatic injury. Medicinal properties include: respiratory, digestive and urinary tonic, and helpful in healing haemorrhoids. Actions include: nutritive tonic, demulcent, expectorant, astringent, haemostatic.