This book was "First-grade Medical Concubine". The protagonist had transmigrated to become a good-for-nothing daughter, and her face was even disfigured. However, she was an elite in the forensic field. She used her professional knowledge to extract silk from cocoons and speak for the corpse. Later on, she was able to travel back to her own era and become a modern doctor. I hope you like this fairy's recommendation. Muah ~😗