My 3 year old had this surgery (tonsils & adenoids removed) in June. Right after surgery he got done he was very drowsy and slept on me awhile and I rocked him. Our ENT has all children 3 & under stay overnight in the hospital, which was nice because he had an IV to keep him on fluids (very good). When we got to our hospital room he started coughing some and got really nauseated and threw up. Wasn't expecting that, so be prepared have extra clothes for you and her(she will have a gown, but bring extra comfy pants and socks). Have something ready (a pan) to catch the throw up in if that happens (may be it won't). He sounded pretty raspy and congested sounding for the first couple of days. We had a really hard time getting him to eat/drink anything. I just basically had to follow him around trying to give him sips of things or bites of ice cream. He ate a lot of cheese, some ice cream (not a whole lot), some pudding, ensure/pediasure/slimfast drinks. He just really didn't want much at all. They will tell you, no chips, foods with edges (pizza crust), anything hard to swallow. Liquids are the most important to keep her hydrated. He didn't eat/drink much at one time, so I just kept offering him things throughout the day. Good luck!