If you have black mold growing in your shower, there are a few things you can do to get rid of it. First, make sure that the area is well-ventilated so that the mold can't grow back as easily. You can also try scrubbing the affected area with a bleach solution or a vinegar and water mixture. If the mold is really stubborn, you may need to use a stronger cleaning agent like chlorine bleach. Be sure to follow the directions on the label carefully and always wear gloves and a mask when working with bleach. Once you've gotten rid of the mold, make sure to keep your shower clean and dry to prevent it from coming back.