How can I get rid of my dry coughs?

I recovered from a bad case of the flu a couple days ago and I can't afford to miss any more days of work, but I have this horrible dry cough that is constant. I get in to coughing fits were I can't stop and it gets to the point where I begin to gag. This would obviously be a problem in the work place and I've become immune to Nyquil over the past week from its constant use during the flu. Does anyone know any home remedies or good foods/drinks that will help get rid of this horrible cough?