MY FIANCE' HAS THIS COUGH THAT WON'T QUIT!!! HE HAD PNEMONIA A COUPLE OF MONTHS AGO OUT OF NO WHERE. AT THE SAME TIME HE GO A JOB WORKING OUTSIDE 5 DAYS A WEEK(HE IS AN INDOOR PERSON). NOW HE HAS A RUNNY NOSE AND A DRY SOMTIMES NONE PRODUCTIVE COUGH. HIS CBC IS NORMAL AND SO IS HIS X-RAY. HE WENT TO THE EMERGENCY ROOM AND THEY GAVE HIM SOME COUGH SYRUP. HE DOESN'T EVEN SMOKE!!! I THINK THAT IT IS ALLERGIES. PLEASE HELP.