 That's 23,000 opportunities for bacteria, viruses, and irritants to get into your nose and make you sick. For an extra layer of protection, wash your nose with Clear. That is Clear, X-L-E-A-R. Clear's drug-free nasal spray features xylitol, an ingredient proven to block adhesion of many nasty bacteria and viruses, and effectively clean, not just rinse like a saline, but wash your nose.