Finding Judas
"Finding Judas" is the ninth episode of the third season of House and the fifty-fifth episode overall.
Plot
Six-year-old girl Alice (Alyssa Shafer), is enjoying herself at a carnival with her father. While on a ride, Alice starts screaming uncontrollably.
House's team checks her and finds gallstones and eventually pancreatitis. It is then revealed that her parents (Christopher Gartin and Paula Cale) are divorced, and argue all the time. Repeatedly, they are unable to agree on whether to trust House's judgment or not, so temporary guardianship is awarded to Cuddy.
Each time the doctors perform a test on Alice, her skin reacts as if she has allergies to everything. House thinks it's impossible for her to be allergic to everything, so he suspects infection. House recommends broad-spectrum antibiotics, but Cuddy, still fearing allergies, decides on Metronidazole. Alice keeps getting worse, including muscle rigidity and liver failure. Without answers, Cuddy runs a charcoal hemoperfusion during which Alice develops a clot in her arm. Foreman and Cuddy operate on her and remove the clot, during which time her temperature rises dangerously. Cuddy cools her off by taking her into a shower, where an angry House finds her, berates her for giving Alice weak antibiotics, and telling her she'd fail as a mother, which drastically emotionally effects her.