A Brooklyn anesthesiologist who couldn’t numb herself to the heartbreak of getting dumped by a fellow physician allegedly threatened to kill him and his mom with a muscle relaxant, a lawsuit claims.

She also threatened to kill herself.

“How would you like my dead body on your doorstep?” Pik Lee allegedly asked Francisco Sebastiani as she brandished a syringe in December 2017, Sebastiani claims in court papers.

“Let me in, you can’t hide from me forever,” she exclaimed during another unannounced visit.

“If you don’t want to be with me I’m going to come over and kill you,” Lee also said, Sebastiani claims.

Lee pursued the relationship at any cost, even groping Sebastiani while he performed surgery in Brooklyn Hospital Center.

Sebastiani was an oral surgeon resident in Brooklyn Hospital in July 2015 when he met Lee, who was one of his supervisors. But when their year-long fling ended in December 2016, her infatuation with him continued, according to a Brooklyn Supreme Court lawsuit filed earlier this month.

When Sebastiani moved on to a three-month residency at a hospital in Pennsylvania, he ignored Lee’s demands to resume their relationship, along with incessant calls and texts, and blocked her phone number. It only enraged her, he charges.

“I’ll make sure you have no career to worry about,” she told him, according to court papers.

The alleged harassment escalated as Sebastiani took on residencies in various hospitals, as Lee spewed “a barrage of lewd, profane, explicit and threatening text messages and emails … that included gun, bomb, knife, and syringe emojis,” telling him, “This is the only way I can communicate with you.”

“How long do you think it takes someone to bleed out? I hope you’re happy without me in your life,” she allegedly told him.

The alleged harassment culminated in orders of protection and Lee’s January 2018 arrest, but nothing seemed to stop her unhinged behavior, Sebastiani claims in court papers.

“I can always get another job, but I doubt you can get another residency,” she told him.

He claims he was fired after complaining about Lee, and then lost out on a residency last year after the program contacted Brooklyn Hospital for a recommendation. Sebastiani is claiming unspecified damages and a declaration that Lee sexually harassed him.

A lawyer for Lee denied the allegations.

“My client did nothing wrong,” Matthew Walters said.