1 doctor weighed in:
How long does it take for antibiotics to kick in for a sinus infection?
1 doctor weighed in

Dr. Keegan Duchicela
Family Medicine
In brief: Depends.
Most "sinus infections" are actually caused by viral symptoms so wouldn't be helped by abx to begin with.
If you're not feeling better after 2-3 days on abx, talk with your doctor and ask if this could be a viral illness. Also, most recent recommendations say that the zpack shouldn't be used first line for true sinus infections anymore.

In brief: Depends.
Most "sinus infections" are actually caused by viral symptoms so wouldn't be helped by abx to begin with.
If you're not feeling better after 2-3 days on abx, talk with your doctor and ask if this could be a viral illness. Also, most recent recommendations say that the zpack shouldn't be used first line for true sinus infections anymore.
Dr. Keegan Duchicela
Dr. Keegan Duchicela
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