When you say the the "power steering slips" do you mean the belt slips, if so correctly tension the belt or replace it if it is damaged due to slipping.
Try flushing the power steering fluid, (Honda use a unique fluid used only in Acura and Honda), perhaps try an additive made for power steering systems made by a company called Lubegaurd, I have used it in several cars and seen improvements.
You may have a failing steering pump or rack, before replacing parts have the car checked by a professional technician.