Doctors frequently prescribe antibiotics or antihistamines to treat postnasal drip symptoms, according to WebMD. Saline sprays that irrigate the nasal passages of irritants and medications that thin mucus are also treatment options for postnasal drip.
The method of treatment for postnasal drip depends on the underlying problem, advises MedicineNet. Tackling allergies with medication and lifestyle adjustments works to eliminate the presence of mucus drainage. Humidifiers increase moisture in the air, while purifiers remove particles and dust. An increase in water intake also thins mucus. Doctors perform surgery to correct structural issues inside the naval cavity when environmental issues are not the cause of postnasal drip and avoiding allergies does not remedy the problem.