When my daughter has had a fever I've alternated motrin with tylenol. The doctor told me to give her motrin and a few hours later the tylenol. The combination works great to bring down stubborn fevers. I'd call a nurse line and get the exact specifics of how much and when.
I have also had experiance with tylenol not doing much good. Works great for me but not for little people I guess.
Maybe you could try some sports muscle rub creams or something similar for the muscle aches.
Also a low fever is actually good and helps the body I only give my daughter fever reducing medicine when I absolutely have to. If she has a cold I've found the side effects of medicine to make her feel worse so I don't bother with that either. I have found that vicks vapor rub works awesome and besides being stinky has no side effects.
I have also seen some parents shove tylenol or similar medicine down their kids throats for any little thing, and the kids getting so use to the mediciine it no longer is effective or works kinda like over prescribing antibiotics. I'm not saying your doing this but that can be a problem too.
I know I had a fever about 3 weeks ago because of strep and was freezing cold and achy. I shouldn't have but I was so miserable I did anyways and I took a really really hot bath, it did make my temp go up slightly but I was no longer freezing with the chills or achy the rest of the night.
I've never tried this but I've heard of people having a fever and sweating it out. Like making themselves hot and sweaty and supposedly they've broken fevers that way.
I guess in my opinion fevers aren't necessarily a bad thing til you get around 102ish or higher. Fever's help the body fight infections and get better.