My 5 y.O. Got a penicillin shot 24 hrs ago to treat her strep throat, however she still has a fever of 104 which I'm giving her motrin for, is this norm?

Yes. You are playing catchup with the infection and it may take 24-48 hours for enough germs to be killed off for the temperature to start heading down.True strep is universally killed by the penicillin's. Any fever lasting more than 48 hrs may represent a co-infection with something like mono.