How to get rid of mold around shower pipes permanently

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

1. 1
   Spraying cleaner and scrubbing the surface
2. 2
   Checking for moisture and leaks before cleaning
3. 3
   Using bleach, toothpaste iodine, silicone nitrate, and a scrubber
4. 4
   Using scrubbing bubbles and scrubbing like crazy
5. 5
   Rinsing with hot water
6. 6
   Using liquid Lysol toilet bowl cleaner
7. 7
   Replacing the caulking
8. 8
   Drilling holes into the concrete plug using a masonry bit slightly smaller than the pipe's inner diameter, then working it out in chunks with a small chisel and needlenose pliers.

In their words

Unedited, most upvoted first, each linked to the thread it came from.