Comfrey leaves contain compounds that reduce swelling and promote the rapid growth of new cells. Comfrey leaves can be made into a warm compress or a paste and used on bruising. To make a warm compress, pour two cups of boiling water onto thirty grams of dried leaves, or sixty grams of fresh leaves. Steep for ten minutes and then strain. Soak a gauze pad or a washcloth in the solution and apply it to the bruise for an hour. Alternatively, you can use fresh leaves and make them into a paste. Apply the paste to the bruise and allow it to dry. Once it has dried, apply a second layer. Once the second layer has dried, wash it off with lukewarm water. It is important to note that you cannot use comfrey leaves on any broken or open skin.