How to get rid of black water spots beneath my iphone screen?

Last night i left my phone on the sink while i was having a shower and when i came out, like a drop or two of water was beneath my iphone 3gs. When i turned it on, grey splotches were appearing. I really need to get rid of them without getting a new screen because my mum will kill me!

You have to take apart the phone and dry it. The water is between the digitizer (glass) and LCD (screen). Since it has been in water, you have to take it apart to dry it properly or the circuit board will corrode and the phone will not function properly.

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