I dont really know but sometimes i go and take a shower, read a book, draw a picture, even though i cant draw, or write in his spiral notebook i have. It doesent have to be positive but it helps to get out what you're thinking. Gotta hide that book really well. And then i hope the urges don't come back.
And music!!!! Lots of it, happy/positive/upbeat if you've got some.
Sorry if i'm not much help. But thats what i've got.