I have been relying on this for at least 15 years to manage sickness. Cold, sore throat, sinus infection, flu ... this is THE BEST solution to get well quickly. Take it to bed and use whenever I wake up, etc. Other people, my wife included, have discovered this through me and agree that it is ESSENTIAL. It is much more effective with the spray top, but I save the spray tops from bottles that come with them, and reuse those tops on cheaper purchases of bottles that come with the dropper top.