My daughter is 6 and has had 10 or 11 sinus surgeries in the past 2 years for sinus polyps. Before the docs threw all kind of antibiotics at her not realizing she had severe polyps and she remained sick for a very long time. After the surgery she was so much better! She slept better, ate better, felt better! And like Kristie said the saline sinus rinses were a life saver. Hard the first couple of times, but she quickly became a pro. They get the bacteria out of the sinus' that would normally be stuck in the sticky mucus that causes the inflamation and infection. I would definately try the sinus rinses(you can buy them at any pharmacy over the counter). A word of caution Abby's polyps got so bad that she had bone loss between her eyes and her nasal cavity, so I would keep a close eye if your little one does have polyps.