Hi Mommy.... I have 6 year old twin girls that both had their tonsils out, one was 2 and the other was 4 when they had the surgery. My oldest now 21 also had hers out when she was 5. BELIEVE me the surgery is nothing compared to 15 years ago. The process is sooooo much faster.(10 minutes to be exact) The recovery time is fast, my girls were up and running the same day, I would say its harder when they are younger (like under age 3), as they can't talk to tell you whats wrong or if they hurt, taking medications and drinking liquids is the most important part of recovery, if the throat stays wet the surgery area heals faster and won't be as sore. So lots of jello, NON RED popsicles, water, juice (non acid) soups. I would say since your daughter is school age a few days would be expected to stay home from school... but I'm sure your Doctor will tell you, he should also give you a return to school note to give the teacher.
Hope this helps, If you need any further info feel free to ask
D.