My son gets frequent sinus infections and a friend of mine recommended that he use the NeilMed Sinus Rinse packets once per day. I was extremely skeptical since he has always needed antibiotics to clear his infections. This past week he had symptoms of a beginning sinus infection again (congestion, post nasal drip) and we starting 'flushing' his nose out with the NeilMed Sinus Rinse twice per day. I was shocked how much mucus came out of his nose. After a few days of the rinse, he was clearly improving and by the end of the week, he showed no symptoms of an infection. We are now using the rinse to keep his sinuses clean and hoping to proactively reduce any future infections. It has become part of his daily routine, like brushing his teeth. Excellent product that I highly recommend.