My 5 yr old son spiked a fever over 103 last night, I placed him in a tepid bath and gave him some ibuprofen to bring the fever down. He was given another dose at 5 am, as a precaution. When his morning dose wore off, the fever spiked again and he became lethargic til the next dose took effect. The temps run between 103 and 106 depending on where I place the themometer.(It is a temple read thermometer) He has a cough and a runny nose, but doesnt complain of any other aches or pains. Should I rush him to the hospital or continue to manage the fever with meds and fluids?