My wife cleaned our monitor screen / !oh no!

This topic has been moved from the section Opinions and Experiences to section Computer Peripherals by Pyree

You can't really fix that, most screens have a protective coating on them, which is what got rubbed off, or partially rubbed off.

I find that the magic eraser works pretty well to clean out screens but don't know if that will work in your case. It has removed pen and marker from screens I have used it on, without any damage that I have seen. Including on my $600 LCD monitor that my daughter wrote on with a Sharpie.

There's also wipes that are antistatic and are safe for computer parts, screens, keyboards, everything basically. She probably used too strong of a solvent and the coating came off.