I have this section of the wall just above my bed, recently it became a bit dirty so I used a sponge to clean it. Unfortunately now I'm left with a a big green mark on the wall and it wont go away.
I think the only way it to paint over it . is there any other option ?
If I paint that half a meter squared section I donx't want it to much noticeable from the rest of the room What should I do ?