Post-nasal drip (PND) occurs when excessive
mucus is produced by the sinuses. The excess
mucus accumulates in the throat or back of the nose. It can be caused by rhinitis, sinusitis, or laryngopharyngeal acid reflux. It can be enhanced or sometimes even caused by allergies.The stomach problems can be caused by allergies or it independently can worsen the symptoms.
Take plenty of fluids throughout the day and inhale steam as many times as possible. .