Or you can buy the root in a health food store in the form of dried chips, grind it up in a blender and mix it with aloe vera gel as an application to wounds. Gently pack the paste into the wound and cover it with a bandage. You should change this poultice every day, washing out the wound with water, and use hydrogen peroxide if any infection is present. Comfrey really is for the most stubborn wounds. I don't really think it's the best choice for bruises.
Some people say comfrey is one good reason to regulate herbal products.
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