Make really really really sure that your child is not contagious anymore before you go out...CP is very very very contagious and if you go out now, you might be giving somebody the not so welcomed Christmas present of the Spots.
I say this because one time my SIL's kids had Chicken Pox and she was supposed to host the other SIL's bridal shower. "Oh, they are all scabbed over and they will be at their grandparents anyway."
They were not at their grandparents, they may or may not have been scabbed over, and although we tried to stay outside as much as possible and away from the cousins, two weeks later my daughter got them, and since you are contagious before you break out, her whole daycare got them...costing parents time from work and income from the daycare provider.
Keep your daughter home, just tell her you cannot go out when you have the CP.