Mold is only form in a wet place or thing. Main mold related problems are Allergic Illness, Infection, Asthma and may cause other diseases. One simple way of removing is the use of 'vinegar', which is capable of killing mold species. It is Eco-friendly also and hence, does not cause any harm. Use white distilled vinegar, which is very cheap, spray vinegar on mold and leave it for sometime. Then wipe the area with water and then allow it to dry.