2. Get rid of mold with bleach

In this case, the solution is a palliative, since it is able to completely eliminate the mold, but not the humidity present in the walls.

Mix two equal parts water and bleach in a spray bottle. Remember to use rubber gloves, goggles and a mask. Open all windows when you apply this method.

Spray the solution on the mold and use a toothbrush to scrub it vigorously. A little patience is required, stubborn mold may require more than one hand to get rid of.

Warning: Bleach can discolor painted walls, so this method is best suited to white walls.

3. Remove the mold with hydrogen peroxide