Abstract: A method for treating an animal using a constant amplitude electromagnetic field including: providing at least one constant amplitude electromagnetic field focused at a center location, continuously maintaining an area around the constant amplitude electromagnetic field at a constant temperature, placing an end of a limb of an animal at the center location, exposing the end of the limb of the animal to the constant amplitude electromagnetic field for a length of time ranging from 10 minutes to 3 hours to simultaneously treat venous and arterial blood cells and nerve endings in the limb of the animal.