Trying to correct the Nitro, or whatever nutrient problem you're having, is like trying to make sure the oven is turned off once the house is already on fire...tend to the fire, in this metaphor the fire being the PM, and then you can get back to tending to any nutrient disorders. A nutrient problem like that is slow progressing and is not nearly as immediate of a concern as the severe case of PM you're experiencing. I'd be scared to even smoke that bud even if you do stamp out the mildew, honestly....especially for someone like me or many other medical MJ users with immune system disorders, a mold contaminated bud could spell out real medical problems.