It's an en suite and the top of the walls and ceiling have all got very mouldy and damp, it looks disgusting. We're renting so don't want this coming off our deposit either!
We make sure we use the extractor fan with every shower and then open the window wide once we're done in there but it doesn't seem to be making a difference, it's just getting worse.
Any ideas on how to stop and remove this would be greatly appreciated