How do I get rid of the 100 day cough?

antibiotics don't work well on a lot of things like they used to. If your truly ill you may need a sputum culture, I am a nurse, and I see resistant infections more and more, these are germs that don't respond to antiobiotics. a 100 day cough is suspicious, it should be getting better by now. live a healthy life style, eat well, sleep well, if your able but if this cough keeps going on and on return to the doctor for further testing.