Looks like many patients ,who take Lipitor also have itchy skin.
http://www.rxlist.com/rxboard/lipitor.pl?noframes;read=469
As cholesterol levels are reduced by use of a statin, such as Lipitor, and cholesterol is a major lipid of cell membranes, I'm not too suprised, that patients on Lipitor begin to get itchy as their cholesterol blood levels decline.
Relative to liver problems, any patient on a statin ( or even other medications) should have liver profiles on a regular basis.
check this out with your physician.