A 26-year-old female asked:
is keflex good for sinus infection and upper respiratory infection?
1 doctor answer
Dr. James Burns answered
37 years experience Emergency Medicine
Only: If it is a bacterial infection. Most upper respiratory infections however, are viral and many people mistake a viral rhinnitis for sinusitis and take unnecessary antibiotics. Sounds like you may be considering taking left over keflex. Would recommend against that. Rather consult your doctor.
Answered on Mar 22, 2020
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