What happens next?

How to clean painted walls
Avoid harsh chemicals on flat and eggshell finishes.
Both flat and eggshell (also called satin) latex paints look nice on interior walls because they don't bounce a lot of light. Unfortunately, these popular paint finishes can be finicky to clean.

Select from: A. Use an oil-based cleaner that is deodorizing and doesn't damage the paint. Use an all-natural paint stripper for a bumpy finish.; B. Some paints may have little brown smudges over them or have a tarnish on them, which means they are known to deteriorate pretty easily. The dry cleaner you choose is up to you.; C. These finishes can be damaged easily, so do not use chemicals or degreasers on this kind of paint. Mix a few drops of dish detergent in a 0.5 gallons (1 , 900 ml) of water.; D. Some paints simply also come in bad shape and appear to fall off. Please try you are only cleaning slightly discolored surfaces.;
C.