Short of redoing them, I've fixed stuff by manually reducing the gain and doing short bursts of eq on the offending spot to reduce plosives. Don't expect a 'set and forget' cure, you'll be fucking with it for hours.
Definately, like using strip silence on smaller areas rather than the whole track, so you can change the threshold, try automating the boost of those exact frequencies that are loud and put a compressor after it.
If you boost the lows in the right spot for each syllable that bugs you and compress that, the boosted stuff is above the comps threshold and slammed back down...it's like a de-esser but more of a de-popper.
Try not to set and forget, this isn't a Ronco product, this is making records.
Pop filters are great. I had a singer in that sounded like Christina Aguraliagara a while back, so I threw up the pop filter and it seriously helped the brutality shine through.