Silver Helps To Boost Your Immune System Our silver nasal spray is the perfect daily defense to help fortify your nasal passages and boost your immune system. By helping to boost the immune system, you allow your body's natural defense system to work more easily at helping to maintain its natural and healthy state. Use For: Irritated nasal passages Congested nose Runny nose Blocked nose Sinus pressure Exposure to dust, pollen, and other airborne contaminants Directions: SHAKE WELL before each use. Clear your nasal passages by blowing your nose. Insert the nozzle into nostril and depress pump completely while breathing in through your nose. Spray 2-4 times in each nostril. Clean nozzle after use.