K.,
My daughter had the same issues with allergies, but she also had extremely large tonsils that would swell and fill with infection every couple of months.
The doctor told us this was due to the kind of tonsils she had, and it must have been from my side of the family because everyone has had them removed at some point in our lives. That being said, the ordeal wasn't as bad as I had imagined it would be. We waited until she turned 5 yrs. old so that they would still be smaller. Thinking back I would have opted to have them removed sooner; maybe age 3 or 4. The large tonsils made it hard for my daughter to swallow and eat, plus when she would sleep on her back they caused her to stop breathing for small periods of time during the night.
The healing process was quick for my little girl and she loved the attention of getting freezie pops made by Mom. Nowadays, they don't take out the whole tonsil they just shave them down a little on each side this was for faster healing time but you get the same result. The doctor also didn't remove my daughter adnoids, at all. This might be something to ask about. I think not removing them completely helped out alot. My daughter hasn't had a bit of trouble, not one sore throat since they were removed!
Good Luck! Give her lots of love and attention and try not to worry.
((BIG HUGS))
A.