Forget about the black current, hot water, honey and those things.
I just came across an article in the Independent which seems to be the PERFECT cure for ladies coughs. While you may get fat, you will enjoy taking your medicine, it is CHOCOLATE.
QUOTE
Perhaps most surprisingly, chocolate even works effectively as a cough remedy. Scientists at Imperial College London discovered that theobromine, one of the stimulants in chocolate, is a third more effective in stopping persistent coughs than codeine, the medicine most commonly used. The theobromine suppresses the nerve activity that causes coughing, and it is thought that the viscous quality of melted chocolate could help soothe tickly coughs.
Full article is
Here