im pretty sure if its caught between the glass in the LCD you might be out of luck. can u take a picture of it?
i would go into this expecting to have to replace the screen but one thing that i would try is trying to get some alcohol in there. use the highest percentage you can find though. 90+% id say 99 if you can get your hands on it. let it soak through and then air it out for a couple of hours ATLEAST and then try to power it up and see how it looks before completely reassemble.