Poison Doctor Princess: the Scent of Medicine in the Palm of a Powerful Minister

After the new emperor ascended the throne of the Chu Dynasty, the daughter of the former queen, Princess Yongning Xiao Shutong, was deposed as a commoner because her mother's family was convicted, and was demoted to a side courtyard next to the cold palace. A modern Chinese medicine graduate student traveled through time. The original master was mute due to poison, had his fingers cut off, and only had half his life left.