My old dog went down two steps and hurt his leg. He was limping. Used homeopathic remedies like I do if I sprain my ankle they are: rhus tox 30c, arnica 30x, ruta 30x, hypericum 12c. Give immediately, then 15 min later another dose, then 30 min later and keep making the time farther apart, he is well today. Works for people sprain also like a miracle! Take 30 min away from food.