As LBSs she can be prone to getting stuck - make sure if you are giving her a bath the water is tepid do that you dont send her colour too wildly back and forward.
She also has a funny coating to her body which can be surprisingly easy damaged so you may want to be careful of the magic eraser - it will remove her coating in much the same way it can erase symbols. It will of course also be damaged by acetone.
Initially I would try something like baby wipes to get the worst off of her and then go from there. If you decide to risk the eraser just be aware that you could remove the coating and use it on as small an area as possible.
Good luck!