I have had a cough for about 30 years sometimes as a result of a bug it gets worse and i have had pneumonia but normally I just cough most of the winter and resort to antibiotics in desperation. They sort it but never 100% .It seems to be caused by fluid coming down from my nose. Have had various tests .and am not asmatic. Usually better in warm weather. I have tried non dairy diets which had some effect. Anyone had similar problems and if so any suggestions?