Comfrey for horse's bowed tendon: Some years back my horse seveerly bowed digital extensor tendon during a fight with another horse through a fence. I immediately started massaging comfrey oil all along the front of the affected leg. Since my vet wanted her movements restricted, this not only gave her medical assistance, it also gave us both psycological benefits. After her confinement was up, I would walk her slowly by hand. I continued the treatment of Comfrey oil for several weeks as she returned to full activity. Now even my vet cannot tell which leg was affected. Only she and I know for sure.