Oh no! Well, I had luck with just holding my cat for about 3 minutes at a time, but I understand about her not wanting to stay. What kind of hand holds do you have? They may be intimidating her. I have the Zapperplans.com Zapper and it comes with finger clips, made from bent copper wire. One idea I have for you is that you could tuck your leads in at your waste and hide the zapper so that she thinks you are just holding her, and then just baby her for as long as she will stay with you. If she won't stay very long, just try again in a little while. I found that my cat did not need the full 7 minutes at a time.
Otherwise, you might try some Colloidal Silver . She can drink a little bit in her water, and you can also swab her ears with it.