It's important to find out why the mold has begun to develop in the first place, otherwise, the mold will keep coming back even after you have cleaned the area. An undetected leak or other water-related problem may be causing the mold to grow which, if not fixed immediately, will create big problems.
Mold can generally be cleaned using water and detergent. If you need to repaint a wall where mold has been present, make sure there are no traces of it left and that it is completely dried out before attempting to apply paint. The same principle applies if you are re-caulking a surface.
Mold is often found in carpets and, although you can try to have them cleaned, in most cases it is better to replace them as it is very difficult to remove mold completely. Soft furnishings can also be cleaned, however, it’s likely that a permanent stain will be left on the fabric from the mold or mildew.
Another important step when cleaning up a mold problem is to wear protective clothing, including a respirator mask to prevent you from being exposed to the hazards associated with mold spores.