Skimming over other comments, I note you've been given some advice about not treating fevers. It's true that treating children's fevers under ~105 is a cultural thing: Americans have tended to do it, for several generations. Europeans have not. But I think there's somewhat universal concern over fevers that exceed 104, because it's rare for normal childhood illnesses to cause a fever higher than that. So, at 104, you should be monitoring closely to make sure it's not getting higher, in case your child has something more serious (like meningitis), which it would be best to have identified and treated as early as possible.
Another consideration is that it's hard to keep sick kids hydrated or give them any nutrients, if they're so fevery that they vomit everything that crosses their lips. That's why I prefer to treat high fevers, even though I'm someone who typically avoids giving medicines including OTC ones. My fever "trick" of choice is the acetaminophen suppository. They're OTC, sold in a little box near the other fever-reducers, and I think they're always off-brand. I don't think Tylenol makes any. A wakeful kid will be a little squirmy about taking rectal medication. A sleeping kid might not even notice. But they're not painful. It's like a very, very small piece of butter - shaped strategically - that starts to melt as soon as it comes in contact with body heat. (So you have to be ready to work quickly, or it will melt on your fingers instead of just inside your little one's bottom).
Suppositories let kids absorb the medicine without the possibility of vomiting it. Once the fever is down enough that a kid can reliably take oral medication, I alternate Tylenol and Motrin. It sounds like your nurse advised you to overlap them? That sounds like a lot of medicine, if the Tylenol is lowering the fever. I usually find it sufficient to give Tylenol; 4 hrs later Motrin; 6 hrs. later Tylenol.
--- OOPS! ----- Just realized the OP's kid was sick *in 2006*. I assume he's better now...
Edited by VocalMinority - 3/6/14 at 8:09pm