Hi, I am curious about an issue I have been having for years and years -- I sneeze. Non-stop. It happens mostly when I'm at work, and its basically just all day sneezing -- I'd guess it to be usually at about 50 - 100 sneezes a day, easily. But here's the weirdest part, I've been tested multiple times by multiple doctors and GPs and allergists -- and by all accounts I have absolutely NO ALLERGIES! I'm not allergic to dust, dust mites, dander -- NOTHING. I do have the phenomenon of sneezing repeatedly when I first wake up in the morning, and then the other time when it becomes a real problem is the 9-or-so hours a day I'm at work sitting at my desk. My office is lit by fluorescent lights, so I thought maybe it could be a reaction to the fluorescent lighting, but the thing that makes me doubt if this is Photic Sneeze Reflex is because when I look DIRECTLY at the lights (or the sun) I have no discernable reaction. Could it just be oversaturation from the lighting that's then overstimulating my optic nerves? Or are there any other explanations besides allergies and photic sneeze reflex for what's going on? I need to try and make it stop. Antihistamines don't do anything, and it's really difficult to be productive at work when I'm CONSTANTLY sneezing. I would like to specify that I don't have itchy, watery eyes or a runny/stuffy nose, no symptoms of any cold or anything -- just for years and years I sneeze a hundred times a day every day. HELP!!??