Hi there - first post in this forum. Any advise would be much appreciated. So I have had blepharitis symptoms on and off for years now. I've started to accept the fact that (based on process of elimination) my symptoms are coming from cigarette smoke. But the thing that worries me is: I had been smoking for years on and off, and it never caused my eyelids to flare up like they do now. I am worried there's some underlying immune system issue that's causing this. Does anyone have a hunch as to why, all of a sudden and after never having done so before, my body would suddenly start to react this way? Should I be worried about immune system issues? If so, what sorts of diseases could cause this sensitivity all of a sudden? Thanks