Removing mould in bathroom

https://www.howtoremoveblackmold.com/shower-mold-removal/

try vinegar and baking soda. Or carefully apply bleach. The bleach may remove the stain, but you must address the source of moisture first.

Clean it with bleach water to help with the staining. Let it dry, then spray it with vinegar to kill the spores, making sure you spray it well all over the shower. Let it dry on its own so that it can do its work best. That should keep the mold or mildew away for a little longer. Try to keep the shower dry and make sure you run the fan for a while after using the shower. It is the residual dampness that allows the mold/mildew to form and flourish. You can use whatever product you want to clean the area, but use the vinegar to keep the spores down when you clean up the shower.

I read somewhere that hydrogen peroxide would remove mold. Spray on, let sit and then remove. Wear gloves and eye protection in case of splash back.

in a spray bottle, fill it half full of water. then top it off with white vinegar, spray the mold liberally. some would use bleach....but when I looked into it....the bleach wont kill the mold spores that spread the mold. the vinegar water mix does. go figure. mold needs a few things to grow...something to eat...drywall is tasty, a darker environment- keep a full spectrum light on it, when you get it all gone from your ceiling there are paints with a mildew/mold inhibiter.

I agree with hydrogen peroxide. Kills the mold, you can let it air dry, it also kills bacteria and bugs hate it. Spray on, let dry, repeat til mold is gone, not toxic to breathe like bleach and others. After mold is gone, you can continue to use to clean.

Use 1 part bleach to 2 parts water. Spray on your shower.