POSTNASAL DRIP

A runny nose is often associated with inhaled allergens that irritate the lining of the nasal passages.  Thin, watery mucus is discharged through the nose to wash away these irritants.  Excess mucus produced often drips down the back of the throat.  This postnasal drip can cause the throat to become sore.  While nasal discharges are common reactions to many allergens, they are not considered serious.  Problems arise when the mucus becomes thick and plugs up one or both eustachian tubes between the ears and the nose, causing pain.  Thickened mucus can also clog the sinus passages and lead to headache, sinus infection, and facial tenderness.  An allergist may prescribe appropriate antihistamines to control the allergic production of mucus.  

P.S.  Using saline nasal sprays, drinking plenty of fluids, and humidifying indoor air can help thin mucus that has become thickened.

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