Nose How it works. Hay fever: A sneeze on the breeze Spring is here. Has your nose sprung a leak? The Basics Outsmart springtime allergens What to do about a broken nose Cold vs. allergy quiz Sinuses quiz More information Kids and the bloody-nose blues Respiratory syncytial virus (RSV) quiz 5 facts about the common cold Bad vibrations: Why some people snore A shot to prevent sneezes? Sinus trouble can be a real headache Allergies or a cold? How to tell the difference Related stories