Remove it with vinegar, it will stay away longer, although it won't remove the root cause.
The root cause is that you have a source of moisture there, allowing these fungi to live. Maybe your toilet has a pin leak, or that spot is a bit colder than the rest of your bathroom, leading to moisture condensing there first. If you remove the source of moisture, the mold will be gone too.
The root cause is that you have a source of moisture there, allowing these fungi to live. Maybe your toilet has a pin leak, or that spot is a bit colder than the rest of your bathroom, leading to moisture condensing there first. If you remove the source of moisture, the mold will be gone too.