A.G.
Fevers like that don't come with teething. But, it could very well be a virus, in which case the Dr can't really do anything but control the fever, which you are already doing effectively. But, if I were in your position, with such a high fever, I would at least put a call into your regular pediatrician and see if (s)he would like to see your little guy and confirm that it is in fact a virus.
If it is a virus, be sure to keep him as well hydrated as you can while he's running fevers like that. If he likes popsicles, they have pedilyte ones that are good for hydration and cooling off.
I hope your baby is better quickly!