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[|Human|] Cough and lethargy started on Friday, by Sat. noon had 101 temp. Saw Dr who did flu and strep tests. Both negative. He gave me rocephin (sp?) and decahedron injections for sinus drainage and amoxicilin 1000 mg twice a day and a round of predizone. It s Tuesday and this is the first day I have felt any better at all. Do I need to return to the dr? Could the flu test have been wrong? Would I test negative after taking the antibiotics now anyway? 55, female, 120
[|AI|]  HI, thanks for using Chat Doctor Most upper respiratory tract infections can take 1 to 2 weeks to improve or resolve completely. If you are starting to see some initial improvement, this is likely to continue till all of your symptoms resolve. The use of the antibiotics imply that your doctor suspected a bacterial infection causing some of your symptoms. Flu is caused by the influenza virus, it is not a bacterial infection and would not be affected by the use of antibiotics. I hope this helps