that would be a reasonable course of action. sinusitis can be a bit tricky to treat and often one course of antibiotics may not do it. in light of the fact that you are still having facial pain (and pressure? ) and are still congested and coughing you may need further care -- perhaps a stronger or different antibiotic (assuming you had an antibiotic the first round) and something more to control your symptoms. you should go back to your doctor because there are quite a number of reasons why your symptoms may have not be alleviated such as the cause of your sinus infection may have not been bacterial rather viral therefore antibiotics were futile to the infection and so on.
i was just treated for a sinus infection but still feel bad- do i head back to the doc? . i finished all the medication as prescribed but am still congested coughing and have face pain