Hi, my son has serious dairy allergies and there are lots of different things you can do. I give him alpro soya yoghurt which he loves, you can bake using soya or rice milk. You could give you daughter these as well, so it reduces the risk of cross contamination. I know how hard it is though and have to be very careful about shop bought products. You can get dairy free chees, which suprisingly tastes ok. Some of the cereals are ok too -Kellogs cornflakes, shreddies, weetabix - but always check the ingredients. I have almost become obesseive about it! But you do get used to it then it becomes second nature.
I don't log on a lot, as we have probs with our computer at the mo. But I'll try to check in again soon.
Good luck.
