A robust perennial with coarse, lance-shaped leaves and bell-shaped purple or white flowers, comfrey has been treasured since medieval times for its reputation in accelerating bone and tissue repair. Its high allantoin content makes it particularly valued for topical application to wounds, sprains, and fractures, though internal use is now restricted in many regions due to hepatotoxic alkaloid content.
root, leaf
decoction, poultice, tincture, salve
1–2 tsp dried root as decoction 2–3x daily; external poultice as needed for wounds.
TOPICAL USE ONLY — never internally. Contains pyrrolizidine alkaloids.
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