Cure - [s13e13]

Chloe Sullivan (Allison Mack) learns about Dr. Curtis Knox (guest star Dean Cain), who claims to have a surgical procedure that removes meteor powers, effectively "curing" the infected. Desperate to live a normal life with Jimmy Olsen, she schedules an appointment.

In a nod to his former role, Cain's character uses a handkerchief with the initials "C.K." in the opening scene. [S13E13] Cure