I recommend holding the microphone downward so the plosives hit the capsule at an angle or don't hit it at all.
Kinda like this (bad pic, I know):
http://www.dreamstime.com/female-sin...umb6034654.jpg
Then apply some low cut to get rid of the rest of the handling noise and plosives. On a decent preamp, the SM58 can actually sound great and really cut through.