I have a water stained plaster ceiling. The leak has been fixed. A lot of the old paint has peeled off and needs to be patched. I've noticed a few other patch jobs in this old house that are bubbling up.
I think this is due to moisture. Should I put something like Kilz over the water stain, and then patch and paint? Or should I patch, paint with Kilz and then paint. It seems like if I don't get something between the water stained plaster and my patch compound, it's going to bubble up.