I've got to join this party. The description that Tham gave, followed by others is practically identical to what I've been experiencing. I've never had allergies before, and the way this can come and go does not fit what I know about allergies. I've been experiencing this for several months now, but I feel it is becoming worse. With me, I get this irritation in the top of my left nostril. I have always thought it is unusual that the feeling has never been inside my sinuses, but at the top inside of my left nostril and nowhere else. In fact, when I feel this irritation the most, I can actually squeeze against the outside of the left part of my nose, towards the top where you would imagine the top-inside nostril space would be, and it feels like I'm squeezing the spot where the irritation is located. This comes on without warning, and that side of my nose immediately starts running like a faucet, and the irritation radiates into my left eye, causing my eye to water like crazy. Antihistamines have no effect at all. And just like it came on suddenly, it leaves just as suddenly. Literally like someone flipped a switch off. My experience has been that it has usually lasted less than 24 hours, but I'm having an episode of this that has lasted for a couple of days now. It is truly debilitating, and I'm praying there is some physician who can figure this out. That I found you guys who have described the same symptoms makes me feel better. At least I know I am not crazy. I have some additional information that might be helpful. I wear a C-PAP at night for sleep apnea, and whatever this is will go away while I am using the C-PAP (Thank you Jesus!). But in the morning, within a couple of minutes of waking up and removing the C-PAP, it starts right back up. I have wondered if the moisture that the C-PAP device adds to the positive air pressure being forced into my nose has caused some kind of yeast infection, and I see that some of you have suspected yeast. But wouldn't you think that if it was yeast, it would manifest itself in other ways and in other locations, like the other side of the nose or more inside the sinuses? I've only had this irritation in the one spot at the top of my left nostril. Lastly, I have been unable to associate this with any activity or environment. It can come on when I'm active or not active, when I'm at home or at work, or in my car, and it will follow me from place to place. I feel like it does get a little better when I go outside in the cold. And I have not associated its coming on with any food I've eaten. I do feel that when I have gone for a few weeks without any problem and it starts back up, it seems to have always started soon after removing my C-PAP in the morning.
If anyone comes up with any information that might explain this and how to treat it, I would be most grateful if you could post the information here.