Just as with human spines, it depends upon the cause of your pet’s pain. Simple dog back sprains can heal with rest and the steps mentioned above. A more serious back injury in dogs can require not only prescription medications but also lots of physical therapy to resolve. If the symptoms worsen or recur, it can mean that surgery may be required to reduce the spinal compression responsible for your dog’s back pain. If your dog’s hind legs become weak or paralyzed, this is a medical emergency, and you should take them to your veterinarian immediately.