I agree. Anytime someone says they have some trouble breathing or a productive cough then they need to be assessed for pneumonia or bronchitis. If you smoke is there any way you can quit for a few weeks. If you are over 50 it is especially important that you go see your doctor or nurse practitioner. Antibiotics may be very appropriate for you at this time. Depending on your financial and insurance status I would ask for a chest xray to detect pneumonia. If the doctor wont do it, well the antibiotics should take care of you. In my area they often use Amoxicillin but Septra DS and many other antibiotics can work too. I would tell the doctor or nurse I have to get in before XMas. Oh if you are allergic to Penicillin they wont give you Amoxicillin but something else. Do you have any other heart or lung problems?