Okay, quick question. I have on my upper eyelid a very small blister of some type. It's completely clear with a clear fluid inside, no readness. It's located dead center of the eyelid on the part between the inner and outer eyelid (if that makes sense). Anyway, this is the second time in 3 months this thing has shown up. It's not entirely painless in that I can feel it there when I blink, so I'm guessing it's irritated. It looks nothing like a pimple though. So, what is this thing, and other than just waiting for it to go away, what do I do about it?
Thanks.