U.S. doctors online nowAsk doctors free
A female asked:

Taking antibiotic for sinus infection for 3 days but not much improvement. my fever keeps going up between doses like its not strong enough?

1 doctor answer2 doctors weighed in
Dr. Brian Clear
A Verified Doctoranswered
Family Medicine 14 years experience
Not too surprising: In truth the vast majority of sinus infections are caused by viruses which are not affected by antibiotics and resolve only with time. Since your doctor felt an antibiotic was needed, you must have shown some signs of bacterial infection, but even so it can take 10-21 (yes, up to 21!) days for symptoms to clear up. As long as it's not worsening actively, it's usually best to wait and see.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Jan 16, 2016


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.