with persians, stuffy noses are very often a problem--sometimes it's nothing more than their anatomy--if there was a tumor by his eyes, i'd almost expect sinus/nasal impingement that even with the tumor shrinking might persist. i'd go with the vaporizer, and nasal drops if, as michelle said, it doesn't stress him out. as long as he's getting enough air i wouldn't worry too much only because those smushed-faced ones (who needs a profile, anyway?, my eight ask) can't be judged by ordinary standards!
MC -- MaryChristine AIM / YAHOO: TenHouseCats MSN: [EMAIL PROTECTED] ICQ: 289856892