“When things look down, we look up,” Kloots, 38, wrote in a separate Instagram post — “I have my masters in optimism!” Her husband, she says, has “the eye of the tiger,” adding that “the power of prayer is real.”

On Wednesday, Kloots updated followers that “things are going a little downhill at the moment” hours after filling them in that Cordero’s right lung was improving, though his left was “still causing issues.”

Cordero, 41, had recently awoken from a medically induced coma after weathering the loss of his right leg, two mini-strokes, a septic infection and fungus in his lungs. He was also given a temporary pacemaker for his heart.

In March, Cordero, a native of Ontario, Canada, who had acted in “Rock of Ages” and “Waitress” on Broadway, was admitted to Cedars-Sinai hospital in Los Angeles with what he believed to be a case of pneumonia.

He and Kloots are parents to a son, Elvis, who is about to turn 1.