Sept.10 I Went To A Party At "bouncing Bears. It

Sept.10 I went to a party at "bouncing bears. It was hot and the next morning I had congestion bad. It last maybe three days. I have had a cough every since. I live on a dusty road. Could I have a low grade lung infection? I have 800 gm. of penicillin, would taking one a day for 5 days perhaps help???