Water stain on laptop screen?

I ran iced tea over the laptop yesterday, at first I had a small spot in the screen put it on the heater and let it dry overnight, I just turn it on and the spot has gotten bigger, what can I do?

Clean windscreen. Do not moisten a fine microfibre cloth slightly and wipe over it. Possibly add a drop of rinse

Windscreen?

Screen

Yes, but the stain is inside😪

Oh, so

then go to a pc doc