Carol brought Clancy to the clinic because he had a persistent rash on his hands. House thought it was an allergy and asked if there was any change to his environment recently. Carol told House the only change was that the neighbours had a new pool. House realized pool water wouldn't cause the rash, but also noted that Clancy smelled vaguely of the same hand creme his mother was using. He realized Clancy had been masturbating while looking at the girls in the pool and was allergic to his mother's hand creme, which he was using as a lubricant. He gave Clancy a tube of lubricant and sent him on his way.