If an injured employee disagrees with their workers' comp physical therapy plan, they should discuss their concerns with the treating doctor and physical therapist. They can ask for an explanation of the treatment plan, the duration, and the expected outcomes. If they still disagree, they can request a second opinion from another doctor or physical therapist. They can also file a dispute with the workers' comp insurer and request a hearing before an administrative law judge. The employee should follow the procedures outlined in their state's workers' compensation laws.