Mystery Plant = Comfrey

JP read the last post on the mystery plant and did some research. She came up with comfrey which confirms what I have heard from others. Of course I am now faced with a dilemma since comfrey is considered invasive. I think the comfrey needs to go. However, in the research I have done comfrey has wonderful medicinal purposes:

The herb contains allantoin, a cell proliferant that speeds up the natural replacement of body cells. This means that it will promote the swift healing of damaged or injured tissues, as well as maintaining cell growth and preventing diseases. Comfrey has been used to treat a wide variety of ailments ranging from bronchial problems, broken bones, sprains, arthritis, gastric and varicose ulcers, severe burns, acne and other skin conditions. It is also said to have bone and teeth building properties in children, and have value in treating 'many female disorders'. -Wikipedia