If they're just residues of whatever she used, then you should try gently wiping the screen down with a clean lint free cloth lightly moistened with a tiny amount of distilled water (the same type used to fill car batteries and steam irons). Re-fold the cloth regularly so that any dirt it picks up does not simply get laid back down elsewhere nor causes scatches. A microfibre cloth is ideal for this as it's also quite effective at lifting silicone wax residues left by many furniture polishes, although it may take a few attempts before the screen is acceptable again.
If the cleaning agent used was abrasive or contained certain solvents then it may have physically damaged the screen. The only cure is to replace the screen but that's rarely cost effective as it's overwhelmingly the single most expensive component of the tv.
If too much pressure was applied then the screen will either recover over a few days or it won't. if it doesn't then your back with the problem of replacing the screen.
In future, never, ever, let ANYONE but yourself dust and if necessary clean the screens of any of your tv's, monitors or similar devices. If you allow them to clean the casings then ensure that they know the correct way to do so (no chemicals, clean slightly dampened cloth ONLY) or do it yourself.
Answers & Comments
Depends upon what the swipe marks are, exactly.
If they're just residues of whatever she used, then you should try gently wiping the screen down with a clean lint free cloth lightly moistened with a tiny amount of distilled water (the same type used to fill car batteries and steam irons). Re-fold the cloth regularly so that any dirt it picks up does not simply get laid back down elsewhere nor causes scatches. A microfibre cloth is ideal for this as it's also quite effective at lifting silicone wax residues left by many furniture polishes, although it may take a few attempts before the screen is acceptable again.
If the cleaning agent used was abrasive or contained certain solvents then it may have physically damaged the screen. The only cure is to replace the screen but that's rarely cost effective as it's overwhelmingly the single most expensive component of the tv.
If too much pressure was applied then the screen will either recover over a few days or it won't. if it doesn't then your back with the problem of replacing the screen.
In future, never, ever, let ANYONE but yourself dust and if necessary clean the screens of any of your tv's, monitors or similar devices. If you allow them to clean the casings then ensure that they know the correct way to do so (no chemicals, clean slightly dampened cloth ONLY) or do it yourself.