Luckily, this is a relatively easy fix!

The mildew must be killed first. A good
household bleach product will usually do the trick. Let the area dry and then
paint it with a stain block product (such as Kilz) and then top it with a mildew-resistant
paint.

Well- that's certainly easier than I had originally anticipated! Thank you

Sometimes its the simple things! Glad we could help

You need to remove the mold and mildew at the earliest, not only because it does look or smell good but also because it causes many health hazards. You can get detailed information from my blog. Here is the link to it: http://bit.ly/1VYSvmY Hope you like it.