Twice now I've fallen asleep on the couch and when I woke up there was\na clear "skin bubble" on the lower right, outside corner, of my right\neye. The bubble sort of wrinkles up if I push on the lower lid,\notherwise it's flat but obviously not firmly attached to the eye. It\nkind of looks like a blister you would get on your skin.\n\nDo I have something wrong with my eyes or is this natural if I might\nhave rubbed it too hard during the night? Maybe I'm allergic to\nsomething in the couch.\n\nLast time it went away in about a day or two but was really irritating\nand itchy. I'm hoping it goes away the same way this time too.\n\nHow common is this?\n\nThanks folks.