I watched a lovely half hour video this afternoon called Energy Healing 101 featuring a young woman named Teal Swan. She offered a really good explanation of how energy works to help the body heal, as well as gives a demonstration. <https://www.youtube.com/watch?v=wsudVU9zeKw>
All I would add is to correct her comment it's harder to help specific ailments on dogs because you can't have a dialogue with them. This isn't true if you're an animal communicator. In fact, I've found animals more open to this healing than most humans. :)
Energy healing is very powerful on its own and also complements other treatments for pain or disease. CAUTION: Side effects can include feeling better than ever!