Boyd, a young faith healer, is giving a service in a church and "heals" a woman, allowing her to walk.
However, when House goes to talk to Boyd, he notices that he has been drinking water from a previously opened bottle, refilled several times an hour.
House notices an abnormal growth called Tuberous Sclerosis, and claims that it is what is causing all of Boyd's symptoms.
Via phone, House assures Chase that the boyfriend will not come home, while glaring at Wilson across the poker table.
Boyd refuses to strip to reveal a rash on his lower back until his father, putting faith in medicine where "teenage boys" are concerned, tells him to do so.
The rash is discovered, confirming the scenario that the herpes virus attacked Palmieri's tumor, making it go into temporary remission.