Fever 99.5 to 100.9 for 4 daysear ringing 4 days and stuffed a lot of sinus pressure hoe long does a sinus infection last taking antibiotics 4 days now?

Need diagnosis.: Almost all sinus infections start with a viral upper respiratory infection. Therefore, the antibiotic may be of no use and could be harmful because the drug may be destroying normal flora which are beneficial. The entire symptomatology is consistent with vrs (viral rhino-sinusitis. The most objective way to diagnose and treat is to obtain a culture of lateral wall of nose and identify bug.