The second part of the book ends with Alex looking as if he has been cured of his criminal ways. The treatment is slightly disturbing and the chaplain seems to be a lone voice against it. But with it appearing to work the government minister is all for it being used to clear the prisons of inmates.
A combination of injections, of something that is never quite described, along with a daily diet of films that are depicting ultra violence manage to implant into Alex a negative association with violence that results in him being sick every time he thinks of being aggressive.
The treatment takes two weeks then he is paraded in front of the governor, staff and government officials before being kicked out and sent home with it looking as if he has indeed been cured, if that is the right expression.