What are the white pus-looking patches on the back of your throat? I've had sore throat, severe productive cough with lots of wheezing & rattles, but chest x-ray was negative on Aug 1st. Took 10 days of antibiotic, most of symptoms (except wheezing) went away - then it all returned 2days ago. Bad sore throat now, deep coughing, Very lethargic, Low-grade temp of 101, down to 100.9 today. Thank you for your thoughts!