How do you clean mildew off the sheetrock ceiling in the bathroom without damaging the paint? ?

I noticed some black mildew-looking stuff on the ceiling above the bathtub in my daughter's bathroom, but we live in an apartment so I need to clean it without damaging the sheetrock. Thanks :-)How do you clean mildew off the sheetrock ceiling in the bathroom without damaging the paint? ?
Use ';Lysol'; spray, when it dries, then a little bleach and allow it to dry.How do you clean mildew off the sheetrock ceiling in the bathroom without damaging the paint? ?
Sheetrock can not be washed, this would have to be painted with a paint that adds a mildewcide into the paint this will stop the mildew from spreadingl and add protection from mildew reforming also while showering or taking baths windows should be open while bathing or turn on a extractor fan or leave doors open while bathing to help stop mildew from forming on sheetrock this is the best method for stopping the growth of mildew/mold