A member asked:

What is causing post nasal drip for multiple people in the same house?

A doctor has provided 1 answer

Likely allergies: Post nasal drip is the small amt of mucous draining down back of throat. It can occur with viral upper respiratory infections "the common cold". It can also occur with allergic rhinitis "allergies". The home may have dust or may have irritants such as paint fumes, pet hair, cigarette smoke, or other irritants.

Answered 6/5/2013

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