I developed allergies later in life. I would walk around all summer feeling like I had a bad cold. The first time I ever saw Dr Oz, he was on Oprah extolling the virtues of the neti pot. He didn't mention any brand names, but I noticed the Sinucleanse product in my doctor's office. I decided it couldn't hurt to try. After using it for a week or so, I noticed I was feeling a lot better and was not using a box of Kleenex a day. What a relief! Effectiveness For me, it did the trick. I've recommended it to all my friends and associates who complain about sinus issues. Ease of Use I use the genie lamp looking variety- it can be a little messy. My husband swears by a squeeze bottle approach with the same Sinucleanse packets. Immediacy I do not use it as often as I used to. Now, the minute I start sniffling, I head for my Sinucleanse neti pot and packets. When I first starting using it, it took about a week to give me noticeable relief.