1. Place the lemon juice, ginger, and water in a blender and blend until smooth.
2. Pour the mixture through a fine mesh strainer (or use a cheese cloth) to remove solids. Let it drain for a few minutes and press down with a spoon until all liquid is released.
3. Pour the strained liquid into an ice cube tray and freeze until solid.
4. Pop out individual portions (one per day or more if you’re feeling sick), let thaw, and enjoy!