Advid Cold and Sinus is fast becoming my newest best friend! Having gone through an upper respiratory infection this brutal winter, I needed some relief for my head. I was to the point where I could not breathe through my nose nor was I able to sneeze and when I attempted to blow my nose, my ears felt like they were going to pop. I did not like the feeling of relying to breathe only through my mouth-especially at night when attempting to sleep so my family doctor suggested this product. You only have to take one pill every four to six hours which I like. Within 45 minutes after taking the pill, the pressure in my head diminished drastically and I was able to sneeze and my nose started to run! Usually, those things would gross me out because I was singing Advil's praises around the house! What made the Advil work so effectively was that it is both an antihistamine AND nasal decongestant-the best of both worlds. I do strongly recommend though to not take this right before bedtime because more than likely, you might not get to sleep right away.