Offensive Bad Breath

My son for as long as I can remember has had bad breath. He is 8 now. It's not dental.  On our most recent visit to the doctor he receive a nose spray "Patanase" for allergies which will stop the smell but it leaves him tired and yawning in school.  I am not interested in a long term committment to using nose spray.  What other solution should I pursue?  I would like to get to the root of the problem.

[AshleyLynn]

One thing that I've found that really helps me, is a Neil Med Sinus Rinse. I have horrible sinus problems...which can lead to having breath problems. Its usually Post Nasal Drip that causes bad breath if its not dental related. But the rinse cleans out your sinuses and is really easy to use. Most local drug stores or Walmart, Kmart, Target etc. have them. Try going to http://www.neilmed.com/usa/products.php and take a look at their products. I'm in no way connected to them...just a sinus sufferer that knows a product that works!

Best of luck!
Ashley