That persistent feeling of mucus dripping down the back of your throat or constant need to clear your nose isn’t just annoying — it’s a condition called catarrh that affects millions of Americans.

Based on: A Practical Treatise on Nasal Catarrh and Allied Diseases. By Beverly Robinson, A.M., M.D., (Paris), Clinical Professor of Medicine at the Bellevue Hospital ...

Based on: Post-Nasal Catarrh and Diseases of the Nose Causing Deafness. By Edward Woakes, M. D., Senior Aural Surgeon and Lecturer on Diseases of the Ear, London Hospital, Senior Surgeon Hospital for ...

Catarrh is a word rarely used outside humorous contexts these days, but for most of Cincinnati’s history catarrh was nothing to sneeze at, so to speak. It was, up until about 1940 or so, the accepted ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. The indications or uses for this ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...