Meanwhile, House and Cuddy are on a plane. While boarding, Cuddy chides House about 500 dollars of unjustified expenses (120 dollars of which are video services). House gets shown to a first class seat, Cuddy gets pointed to coach. She says she ordered two first-class tickets, but House says he saved 500 by exchanging her ticket for coach. Guy across aisle from House gets sick, vomits, is in pain, has rash. They ask for a doctor. House gets Cuddy. Cuddy has rash, too, for an unexplained reason. Rash is painful.

We’re treated to the juxtaposition of sophisticated treatment at the hospital versus House examining guy with a crude flashlight and limited to only makeshift implements on the plane. At one point he uses the blank movie screen as a white board and assigns three passengers roles that make them the equivalent of Foreman, Chase and Cameron

It’s not clear (to me) what was wrong with Cuddy, but House does figure out what’s wrong with passenger. Not before completely sniffing Cuddy all over to try to diagnose what’s wrong with her. Also not clear exactly where House and Cuddy are headed or why.