weeeelllll, I just looked up ipratropium bromide (I'm an advanced-practice nurse myself, a nurse-midwife, so I _do_ have these drug references lying around the house)--it turns out that iprtropium bromide IS Atrovent, the med that Pedal Wench referred to. It's listed in the Nurse Practitioner's Prescribing Reference as a medication for "intranasal rhinorrhea". Which literally means "runny nose".

Therefore, I guess I'm back to square one! The ipratropium spray does help, it's not perfect, but it's better than anything else I've found so far. Thanks to every body for the input. Lise