I have had a really tough cold for a week and half. The symptums are massive mucus generation, post nasal drip, sore throat, extensive coughing, laringistis, and some headache. I went to my doctor and he prescribed Amoxicillin, and codine cough syrup for sleep at night. I started this treatment last Tuesday. Now, my coughing is producing green chunks and a mild fever of 99F. What do you suggest?