People with post nasal drip caused by allergic rhinitis are diagnosed in much the same way as those with other types of symptoms –- positive allergy testing suggests that there is an allergic cause to the symptoms, and various medicines for allergic rhinitis would likely be helpful for the treatment of post nasal drip.
Non-allergic triggers of post nasal drip may include worsening symptoms with weather changes, exposure to strong odors or perfumes, or as a result of taking various medicines for high blood pressure. By definition, people with non-allergic rhinitis show no reactions on allergy testing.
Treatments for non-allergic post nasal drip include nasal steroids, nasal antihistamines, anticholinergic nasal sprays (such as iptratropium bromide) and older oral antihistamines, such as Benadryl (diphenhydramine) or ChlorTrimeton (chlorpheniramine), used for their drying side effects.
Post nasal drip caused by a sinus infection is treated with antibiotics, although the antibiotics may need to be taken for a longer period of time if the infection is thought to be chronic (lasting for more than 2 months or an infection that keeps coming back).direct laryngoscopy, which may show irritation in the upper throat from stomach acid; with a 24-hour pH probe; or with esophagogastroduodenoscopy.
The treatment of GERD most commonly includes the use of proton pump inhibitors for many months.
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Bousquet J, van Cauwenberge P, Khaltaev N. Allergic Rhinitis and Its Impact on Asthma. J Clin Allergy Immunol. 2001;108:S147-344.
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