Shower ceiling painting

[Sparkles3]

Last year we painted our newly plastered ensuite ceiling with white paint (doing 4 coats, 2 with water mix as was suggested to us for painting over plaster). In our hurry to get the job done (we were doing another couple of bedrooms as well that had been re-plastered), we used the same emulsion paint in the ensuite as in the rest of the house. The ensuite does not have a window, just an extraction fan. Unfortunately, the ceiling has now started getting areas of black (I assume) mould on it and so clearly needs re-painting. It has occurred to me that we should have used proper bathroom paint to account for the steam etc. But do I need to scrub down the ceilings first - or is there anything else I need to do to prepare properly? Thanks for your advice!

[malaise]

We had a whole wall of black mouldy stuff under our wallpaper. It was treated with a mould killer before redecorating, to kill the spores. I think if you just paint over it, the spores will grow through in about 6 months. This could be a lot of crap fed to us by the decorator to get more ��� out of us, but certainly we have no mould now!