fix the water leak and install an extractor fan. You have not given us any clues that anyone else is responsible for your home, so do it yourself, or pay someone. Looking from here, I can't see if the roof is leaking, or a pipe, or if you just have too much steam from the shower and no ventilation.
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local