Why Comfrey?Comfrey has been found to cause cells to divide at an increased rate, thus healing bones and wounds more quickly. Comfrey may be used topically -- as a salve or poultice -- on cuts, bruises, abrasions, and burns. Comfrey should never be taken internally.
How To UseUse comfrey roots for EXTERNAL teas and salves. You also can use the raw root topically. While teas are easy to prepare, comfrey is a bit tricky to make into homemade salves; it tends to mold. Apply cold grated comfrey root or a cloth soaked in cool comfrey tea to sunburns or other minor burns. Apply comfrey poultices to wounds. To create comfrey oil, lean fresh comfrey roots with a scrub brush under running water. Grind together with olive oil to cover, and grind as fine as possible. Transfer to a large glass jar and allow to soak for several weeks before straining. Filter through a wire mesh strainer with cheesecloth or in a coffee filter. Use as a compress or poultice.
Thanks to Jennifer Brett, N.D. for some of the above information.