There are several different types of coughs so cough home remedies need to treat them according to their nature and intensity.
A vinegar and honey treatment may help in the majority of cases but be aware that some coughs can be a symptom of respiratory tract infections which are best referred to your doctor.
"A cough is a sudden and often repetitively occurring defense reflex which helps to clear the large breathing passages from excess secretions, irritants, foreign particles and microbes.
The cough reflex consists of three phases: an inhalation, a forced exhalation against a closed glottis, and a violent release of air from the lungs following opening of the glottis, usually accompanied by a distinctive sound.
Coughing can happen voluntarily as well as involuntarily, though for the most part it is involuntarily.”
If you are satisfied that a doctor’s attention is not needed try this:
This is more effective than gulping it down because there is more exposure to the irritation in your throat.