Question: what is the best way to treat a chronic cough?
Answer: Drink fluids. Liquid helps thin the mucus in your throat. ... 
Suck on cough drops or hard candies. They may ease a dry cough and soothe an irritated throat.
Consider taking honey. A teaspoon of honey may help loosen a cough. ... 
Moisturize the air. ... 
Avoid tobacco smoke.