I had a "smoker's cough" for years. I could always be relied on to let rip with an eye-watering bout of coughing at least once a day, interspersed with little hawks and splutters all day long. I had various medicines and treatments but it stayed put.
I gave up the fags just 2 months ago and, guess what, I don't cough any more. I hadn't thought about it until my granddaughter mentioned it but it's true.
One more reason to stay off those ciggies, folks.