Tip - Home Remedies for Relief From Sinus Drainage | LIVESTRONG.COM

Sinus drainage manifests itself in two forms: a runny nose or postnasal drip, which is the dripping of excess mucus in the back of the throat. Sinus drainage is commonly the result of a common cold or seasonal allergies. When the sinus cavity becomes inflamed or irritated, it begins to swell and secrete more mucus, making it difficult for proper...