Blue smudge

Is it possible to clean blue smudge on the QD OLED? It doesn't affect at all when using the monitor but it annoys me when I see it walking by. MSI website recommends using 70% ethanol so I'm thinking to try that.

Is it possible to clean blue smudge on the QD OLED? It doesn't affect at all when using the monitor but it annoys me when I see it walking by. MSI website recommends using 70% ethanol so I'm thinking to try that.