For a full recap of this episode, you can find detailed breakdowns on Chasing Dramas . The Story of Yanxi Palace – Ep 18: The Drunken Concubine
After decades of surviving deadly schemes, she is elevated to "Imperial Noble Consort," the highest title a consort can hold, and remains the Emperor's most trusted partner until her death.
To prove the child is not a demon, Ying Luo suggests calling a famous doctor from outside the palace, Ye Tianshi. Despite pushback from imperial doctors, Doctor Ye arrives and diagnoses the prince with jaundice , a common medical condition, rather than a supernatural curse.
The episode centers on a life-or-death crisis for Noble Lady Yu and her newborn son, the 5th Prince.