Put the carrots, apple, orange, ginger, and water into a blender and blend on high speed until fully smooth and blended.
Line a fine mesh strainer with cheesecloth over a pitcher and pour the juice through. Pick up the cheesecloth and squeeze any liquid out into the pitcher.
Stir in the echinacea and serve.
Notes
Nutrition facts not calculated with the echinacea, as this will vary based on your child's age-appropriate dosage.