K.G.
Hi Maria,
I'm a nurse and I can understand where your pediatrician is coming from (from a medical point of view). A fever is most likely due to an infection somewhere, and it's important to know where the infection is coming from. And babies and toddlers can tolerate a fever better than a child or adult. BUT it is also important to treat your baby's symptoms too. Is your doc doing something to find out the source of infection? If not I would treat your baby's fever, just be careful with tylenol's dosing and make sure your baby is getting plenty of fluids.
Hope this helps,
K.