Before inserting, pinch nose and blow to clear your ears. For best results, always insert ear plugs one hour before landing. Remove after landing when the cabin door is opened. Chronic sufferers may also insert just before takeoff. Earplugs may be removed when the airplane reaches maximum altitude and reinserted one hour before landing. For maximum results, use your opposite hand to pull the top of ear upward. Insert the ribbed end and turn like a corkscrew until snug. Recommendation: Do not reuse after two flights since pollen, dust and moisture will reduce effectiveness. | 
