Damned If You Do

House has a new patient whose hands are red with boils. She is a nun and all of her fellow nuns believe her condition to be stigmata. After what seems to be an allergic reaction to the medicine House prescribes, Cuddy orders him to research the case. During an MRI, the nun starts to suffer from convulsions. House wonders if her past is coming back to haunt her, as the doctors provide different theories about the nun's condition. However, only one of them has the correct answer.