Susan, My vet actually recommended Dimetapp for Pandora when she had her awful cold. It did seem to help her breathe. She also suggested Vicks for vaporizers--a liquid you put in the vaporizer water--and keeping the vaporizer going into her cage. Unfortunately for Pandora, all of these measures failed. But it did seem to help her breathing some and let her sleep well, which she also couldn't do at first. -- Mike, etc. (see previous post) [Posted in FML issue 0710]