The herb comfrey is a good blood cleanser, nutrient, detoxifier and infection/inflammation fighter.
As a pure slave comfrey helps heal skin wounds, bites and itching. I know a shelter owner who used the salve one of her cats with skin cancer on its ears and the cancer healed.
As a tea taken internally it heals ulcers, urinary tract infections, kills streptococcus and staphylococcus bacteria, heals lungs and respiratory problems. It is known to speed the healing of bruises, torn ligaments and broken bones.
Make sure this herb is in your pet medicine cabinet!