Re: Painting in Bathroom
Unless you're using dry mix joint compound, you're going to need much more than a few hours for it to dry, at least 24, maybe more depending on the thickness of the layer applied and humidity in the room.
My recommendation would be to get all the repairs done and let it dry for a day or two before priming and painting. Prime - two coats, paint two coats, following directions on label for drying time between coats. If time does not allow all four coats in one day, break it across two, prime one day, paint the next.
You can continue to use the shower during this process, however DO NOT do it while the paint is still tacky, let it dry for several hours at least, preferably with a fan circulating the air for faster drying. When you do use the shower, take quick, mild showers to minimize the amount of condensation that occurs on the walls that will soften uncured paint and cause runs. I would even go so far as to run a circulation fan after the shower to help dissipate shower moisture.
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