If I'm to write about this, I need to structure the piece. Start with an introduction about the show "Lage Raho Doctor," then a brief on the episode title (12), and delve into the episode's plot, key themes, notable characters, and perhaps its reception. Since "Lage Raho" series often has moral lessons, the episode might focus on a particular social issue within the medical field. For example, addressing healthcare accessibility, corruption among medical professionals, or the impact of technology in healthcare.