Medically reviewed by Sukaina Hasnie, MD Key Takeaways Postnasal drip can be caused by allergies, infections, irritants, ...

You’ve felt it before—a persistent drip at the back of your throat that lingers like a guest who has overstayed their welcome. The constant tickle and sniffling is caused by mucus that drips down the ...

If you’ve ever experienced the uncomfortable sensation of mucus traveling from your nose to the back of your throat, you know how uncomfortable it can feel. Figuring out how to stop post-nasal drip ...

Dear Doctor K: The worst part of a cold for me is the postnasal drip that lasts for weeks. Can I do anything to stop it? Dear Reader: Postnasal drip is discharge from your nose and sinuses that drips ...

The glands in your nose and throat continually produce mucus (one to two quarts a day). It moistens and cleans the nasal membranes, humidifies air, traps and clears inhaled foreign matter, and fights ...

Dear Dr. Roach: I have nonstop postnasal drip. A Web search led me to a site selling homeopathic remedies that they claim are safe, natural herbs. I'm wary of it. Do you have any suggestions for this ...