I was diagnosed with strep a few days ago. I am on 500mg. Amoxicillin, twice a day. But, I have an ongoing sinus infection and continual coughing which brings up brown phelm. As well, I can t sleep because of the fever, discomfort,coughing and congestion. Is this typical or should I return to clinic to see if I may have pneumonia? I was seen at a cvs mini-clinic on Thursday,today is Sunday.