When they've got a tummy bug? DS (11 months) has the most revolting bug (nappies the worst bit but some vomiting as well) and I can't remember from DD, who's 3, what you do.
Do you feed them, not feed them, give them milk, give them water, try to make them eat or drink, give them medicine or what!!
The bug is going round so I know it's nothing serious but I need the collective wisdom of MN.