Prince Charles: I use homeopathy in animals to cut antibiotic use Prince Charles proposed a solution to the growing crisis of antibiotic overuse in animals and humans to an international gathering of scientists and government officials in London: He told delegates from 20 nations and organizations that he treats his own cows and sheep with homeopathy. Prince Charles has been a long-time advocate for homeopathy. He supports homeopathic inclusion in national health insurance and has written many letters of support over the years.