sniffles

Would this be considered a drippy nose? Should I go to the vet immediately??

We have a holland lop, about 2.3 lbs, who's suffering from an inner ear infection, balance issues, appetite issues and tilt head. We took him to the emergency vet a couple weeks back and they prescribed Enrofloxacin, twice a day. But the emergency vet instructed us to give 1.0ML for every dose...