If you constantly feel like you have snot, mucous or phlegm dripping down from the back of your nose combined with a pretty bad case of rotten breath, you may well be suffering from a condition known as Post Nasal Drip.

Post Nasal Drip occurs when excess mucous is produced by your sinuses and accumulates at the back of your nose or throat.

The exact causes of Post Nasal Drip vary from person to person and include allergies, certain medications, colds and flu, pregnancy and other hormonal changes, smoking, rhinitis (i.e. inflammation of the nose or its mucous membrane) and sinusitis (i.e. inflammation of the sinuses).

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