Welcome to HealthcareMagic Forum
You seem to be suffering from larynogopharyngeal reflux secondary to acid reflux
from the stomach. You need to drink plenty of warm water and use saline nasal spray
followed by steam inhalation. A mucolytic
such as bromhexine
or ambroxol will help in thinning out the secretions and thus reducing your symptoms.
Also, avoid coffee/chilled food & beverages/smoking/alcohol.
I wish you good health