For over a month now I have been coughing as a dry cough. It is constant and when I cough, I cough hard. Lately, over the past few days, the cough has developed into a cough that is starting to cough up junk. If I exhale really deeply, I can hear and feel chest congestion. Sometimes coughing breaks it up momentarily, sometimes it doesn't. I also have had a post nasal drip along with this cough and my nose has been in a constant runny state throughout the time of the cough as I believe it is a post nasal drip (I blow my nose about 50 times a day).
I went to the local clinic, and was put on anti-biotics and they helped the cough noticeably while I was on them, but once they ran out the cough came back stronger than ever. I was put on a second dose, and the same thing happened as with the first dose. I have no insurance, (can't afford it) and visits to the clinic are too expensive for me to go back. I have never had a cough or nasal drip this long in my life so I have no idea what it could be.
EDIT: WHOOPS, I meant EXHALING deeply causes me to cough.