I went to the DR about 12 days ago with a severe sinus infection (She believed). My symptoms were severe nasal congestion, coughing, sore throat, clogged ears, headaches. I was prescribed a Zithromax for 5 days. All of my other symptoms have been relieved with the exception of my ear. My ear still feels clogged and I now have a fever of about 101.5 consistently for the past two days, since she prescribed me with Amoxicillin. I called and told her this and she put me on Augmentin. Is this normal to have a fever and ear fullness even after taking Zithromax and it has been 13 days?