a couple punches... god.. please tell me your joking. Flash unleashes thousands of attacks each minute if not more. HIs punches are enough to easily knock down buildings. Hell. assuming the force field isn't skin tight, he could probably move his hand fast enough to be intangible and poke her in the eye!
Since it would be out of character for IW to do the bubble belly move. Flash takes it 10/10. he'll wear IW out.