My horse is injured and can only walk for the time being? Help?

I still ride as she fine at a walk but limps at a trot and a run.What is there to do to make me and her better at a walk. I do patterns stepping over poles and ground work. Even spoke testing and walking her on the lead ground tying and trails. But what else can we do in the arena to improve are self's. Were a western team and can back patterns and other things just id preferably do something that improves us.