I have a rescue dog who came to me with torn ACLs in both of her back knees. She could barely walk. I found a product called Traumeel. It is an all natural anti-inflammatory, analgesic that is GREAT for muscle pains, aches, injuries, sprains, bruises, arthritis, muscle inflammation, etc. It has changed my dog's life. She is running around like a puppy until I get the money for her expensive surgeries. I use the liquid form and drop it on her food twice a day. This is perfectly safe for dogs and cats. It is actually a human product but has been successfully been used on animals for years.