We know it well: That annoying sensation of mucus dripping down the back of your throat. Whether it happens when you're getting over a cold or bogged down by spring or fall allergy symptoms, knowing ...

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.

We know it well: That annoying sensation of mucus dripping down the back of your throat. Whether it happens when you’re or stomachache, or even signal a more serious underlying condition. Regardless ...