Treatment depends on what is causing post nasal drip. Whether by sinuses, the nasal passage or an allergic reaction. It may be necessary to see a physician to determine the cause. Treatment goal is to reduce mucus production and restore normal cilia function
See Causes and address relevant cause.
A deviated septum, enlarged turbinates or other structural abnormality in the sinuses / nose may require corrective surgery by an ENT specialist
Address inflammation if mucus membranes are inflamed:
How to treat CHRONIC (long-term) inflammation
Type A Personalities especially should try to avoid eating mucus-producing foods (E.g. dairy)
Gargle with 1 cup of water mixed with ½ teaspoon salt. Helps relieve the irritation
Drink plenty of water every day. Keeps your body and nasal passages hydrated. Sufficient water helps thin the mucus.
Use a vaporizer (especially in the bedroom). Also, if infection is present, add Hydrogen peroxide, Grapefruit Seed Extract (GSE), or Ionic Colloidal Silver (ICS)to the water (an ultrasonic humidifer works best for dispersing these anti-microbial substances)
If infection present, use a nebulizer containing natural antimicrobials. E.g. Iodine, Hydrogen peroxide, Grapefruit Seed Extract (GSE) (1 drop GSE in 1 oz saline water in nebulizer), Ionic Colloidal Silver (ICS), Magnesium Chloride, or Sodium bicarbonate
Identify and avoid what triggers your allergy. E.g. If dust is the culprit, then keep your house clean and stay away from dusty places.
Avoid smog and smoke. With their inherent nasal irritants. Second-hand smoke affects sinuses, throat and sinuses the same as for a smoker.
Steam inhalation. Place boiling water in a small basin and inhale the steam to help thin the mucus and widen your nasal passages. Add a few drops of eucalyptus essential oiltoreduce inflammation in the sinuses