“Supernanny” star Jo Frost is battling a “life-threatening” medical condition. The 55-year-old TV personality announced over the weekend she’s been diagnosed with anaphylaxis.

Jo Frost of "Supernanny" fame disclosed her battle with anaphylaxis, and shared that she has survived numerous severe allergic reactions throughout her life.

"Supernanny" star Jo Frost is opening up about living with anaphylaxis, a potentially life-threatening allergic reaction. "I feel like I'm lucky I'm still here," Frost told "Good Morning America ...

Surely the "Supernanny" must have moments when she wants to throttle the moms and dads she counsels on her ABC show. The ones who are frazzled. Unorganized. Annoying.

In the 20 years since Supernanny first aired, Frost has continued her work supporting families both on- and off-screen. Her TV series include Jo Frost: Extreme Parental Guidance, Family S.O.S., Jo ...

"Supernanny" star Jo Frost is opening up about living with anaphylaxis, which can cause potentially life-threatening allergic reactions.

"Supernanny" star Jo Frost addressed her "life-threatening" diagnosis of anaphylaxis in a video posted to her Instagram last Friday.