went to dr this past monday for weakness, sore throat, nasal congestion and bad cough. Diagnosis was allergies and something viral. To top off, im pregnant. prescribed zythromax (zpk), rhinocort nasal and zertec. Physically feel better, but throat still sore amd cough is there occassionally with rattling in chest. Coughed up yellow phelgm yesterday, but not today. Throat very sore. btw, tested negative for strep. please help