How to get isopropyl alcohol out of display

I recently took my nexus 5 phone in the sea by accident. Since then I soaked the device in fresh water, then disassembled, and soaked and brushed all the parts with isopropyl alcohol. The good news is it works again! However I still have some dark patches on the display. I think this is still fluid between the screen and the glass window.

I'm not sure if its water or alcohol, but I believe it is alcohol, because I completely dried the phone for a week before using the isopropyl. If it's alcohol in the window, should I use rice to dry it out, or just leave it exposed to air? Or perhaps use an oven on a low temperature? Its been 3 days now, and the fluid has reduced, but it is still a big problem.

Thanks for your help!