I have an 8 year old that has been on it for over a year now. It helps him tremendously. I was like you though, I was pretty skeptical about putting kids on steroids, but I will tell you it works. We were going in with ear infections everytime the seasons changed. They told me it was allergies and put him on zyrtec, which I had trouble getting the insurance to cover it. They then went ahead and tried claritin and it worked for about 6 months and then it quit working. When I went back in the doctor she told me that she uses it everyday and was going to prescribe it for him. Since then we haven't been back to the doctor. There have been no side effects or anything, and he doesn't even mind squirting in his nostrils. I know your situation is a little different because you have a 17 month old and mine is 8, but it does work!