I would take all dairy out of her diet, dairy will aggravate the gut/intestines causing the troubling poos.

The other thing I suggest is talking to your CHN or GP, especially if it appears to be an ongoing thing.

My boys are both on dairy-free diets, it's been 5 weeks and the difference is HUGE. No more foul poos, consistency is thicker and their eczema has all but cleared up