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Post Nasal Drip is defined (at least in part) as the sense that something is dripping down from

the nasal cavities into the back of your throat. Mucous glands at the back of your throat

constantly produce mucus during the night and day. The mucous is drained, usually through the

nose, at times through the mouth when we swallow or breathe through the mouth. When the

drainage is blocked, the tissues around the blocked mucous swell and form what we know as a

post-nasal drip. There are many causes of this type of drip, but the most common are allergies,

air pollutants, certain medications, mucous from the upper respiratory tract, sinus infections, and

exposure to certain irritants.


There are several different types of post nasal drip treatments available to help alleviate or

eliminate these symptoms. Among the most common are antihistamines, such as Claritin and

Nasal Drip. Antihistamines are used to treat allergies, a common cause of the condition. By

slowing the actions of histamine, the allergy symptoms often dissipate as the allergy attacks

subsides. Nasal decongestants work to slow down the flow of mucus from the sinuses, thereby

lessening some of the postnasal drip. For individuals suffering from postnasal drip due to an

upper respiratory tract infection, an antibiotic may be prescribed along with decongestant


Some medications cause post nasal drip treatment problems as well, including antibiotics,

decongestants, and antihistamines. These medicines, including some non-steroidal antiinflammatory

drugs (NSAIDs), interfere with the action of natural chemicals in your body called

prostaglandins. These natural chemicals act to correct certain biological processes, such as

relaxation of blood vessels. Taking NSAIDs can lead to inflammation of mucous membranes in

the body and, over time, cause allergic reactions and other symptoms.

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