The Neverending Cold

Poor B has been plagued with one heck of a cold. I think we are going on 4 weeks now with the stuffy, runny nose. We've been to the doctor and got medicines, done what the doc said, but still just have that runny nose. Poor little guy HATES HATES HATES the boogie ball now! Anyone out there with suggestions on how to kick this thing, it would be greatly appreciated!!!