OOOOOPS:barnie I have hung my chickens upside down just for a second, then craddled them to apply treatments. But I guess that I won't do that anymore. I have a post on my rooster if you have any advice.
I don't know if this will help, but when it is dark, they are pretty vulnerable. Wait until its dark, wear gloves and snatch her, it you need to, hang her upside down she won't peck at you, then apply the vaseline turn her right side up and put her back on the roost. Ive had to do this a few...