Not Mono

Well, Mono turned out to be an abcess on Ivy's tonsil that was huge for someone so little. 3 days in the hospital later, she came home still with huge tonsils for her age. So today Ivy is once again in the hospital to get those pesky tonsils out. She left home with her mom yesterday saying "grandma, no more pokes". How do you explain to a 5 year old that they have to "poke" in order to make her better. She does not grasp that she will keep getting sick, probably keep having to be in the hospital later if this is not taken care of. Why does it have to hurt to make someone better?
I love you Ivy!