Keep your throat moist. Water, lozenges, sprays. It doesn't eliminate coughing, but reduces frequency. My wife and I are dealing with this right now. I bought home the crud from Beijing, and crippled that with Portland allergies and gave us colds. Take showers as hot as you can stand. Lastly, we put a few drops of essential oils (3-4) in a bowl and pour boiling water in. Grab a bath towel and put it over your head and the bowl. In through your nose and out your mouth. Regulate the steam intensity by opening the towel. All of these things will clear the source of the cough. Avoid alcohol. It will prolong the healing process.