Don't blow (the importance of) your nose!

Your nose filters air before it reaches your lungs, preventing many types of irritation and infection. According to the American Academy of Otolaryngology, an average adult passes 18,000 to 20,000 liters of air through his or her nose each day. This is just one of the body's efficient cleansing mechanisms. During allergy season, nasal passages may swell and produce extra drainage in response to allergens. Talk to your doctor about ways to reduce these symptoms.