For your 1-year-old, taking sips is good if more will make her throw up, but try giving her Pedialyte instead of water, so she can get some calories and electrolytes into her system.
Thanks for the reply! I got a picky baby though she wont drink anything beside water amd milk on a normal day, now she's not even taking milk. Tried the pedyalite and she just kept spitting it out. But it seem like her appetite is coming back
Make sure you try 2 build ur immune system as well. Plenty of vitamin c & healthy cleansing foods.