Since December 16, 2016, I have had the flu, which turned into an upper respiratory infection and then a sinus infection. I was not treated when I had the flu. The Nurse Practitioner told me Tamiflu would only shorten my symptoms for a day or two and refused to prescribe it. In January, I received augmentin for the URI, then amoxicillin and now a ZPack for the sinus infection. I need to know the side effects of these drugs.