Treatment for postnasal drip depends on the cause of the condition, explains WebMD. Treatment options include antibiotics for bacterial infections, antihistamines and decongestants for viral infections and sinusitis, and allergy medications for postnasal drip related to allergens and allergic reactions.
Colds and viruses that cause postnasal drip do not usually respond to antibiotic treatment, so patients often treat the symptoms with nasal sprays or steroid medications, according to WebMD. Some medications may produce side effects such as dizziness, so it is important to consult with a physician when taking over-the-counter medications to treat postnasal drip.
Individuals with postnasal drip related to gastroesophageal reflux can treat the condition by eliminating caffeine and alcohol from the diet, avoiding beverages and foods a few hours before bedtime, and elevating the head of the bed approximately 6 to 8 inches, recommends the American Academy of Otolaryngology - Head and Neck Surgery. Over-the-counter antacids may help to block stomach acid production that contributes to postnasal drip.
Postnasal drip can cause the throat to become irritated and sore, according to the American Academy of Otolaryngology - Head and Neck Surgery. Some patients may experience swelling of the tissues in the throat and the tonsils, which results in discomfort in the throat. Individuals should consult with a physician to determine the cause of postnasal drip before treatment.