Anyone's baby ever have roseola? My daughter will be 12 months in a few weeks and got fever on Monday and Monday 4pm was her last full bottle. Rash came Thursday and we are still struggling to get fluids in her. She's getting sick of applesauce and soup. We get a few oz of water and formula in her every so often but she mostly pushes her cups away. How long should I expect before she is back to wanting to drink?