its been shown that antibiotics don't kill viruses, just bacteria, so not necessarily depending on what "raging shits" are tearing through Sheep's house (why am I reminded of The Blob?)
Yeah, acidophlus can help, so can yogurt. Pedialyte is also a very good nourisher/hydrater. Its made for kids but grown-ups can use just fine.
Also, supermodels drink Pedialyte, eat plain bagels and pieces of lettuce to help keep their "form" when getting into shape for the next big shoot: