Haechi Season 1 Episode 39
Curing the Plague
The king visits the patients at Hwarinseo and consoles them. The riot is prevented. Moon Soo is pursuing Byeong Joo and finds out that he contacted a guard of the Cheongju armory. The king orders a prescription based on the past Cheongju epidemic, and the patients begin to recover. Queen Dowager also recovers from the disease.