The mold can also bring on all kinds of health problems, do you have kids, pets id make sure the mold is not hurting anyone.
some health issues
Allergy to mold ,Infections ,Mold can irritate mucous membranes of the eyes and respiratory system,Trigeminal nerve effects ,Volatile compounds ,Some molds (fungi) produce toxins or poisons, and much more
This link may help, or lead to one that can.
http://www.allergynursing.com/moldy/health_hazards.htmlI used a bleach tablet and water when my modular home was showing some mold.
MDK