Maybe a couple of things:
Could you put Bitter Apple on her teats (it's the stuff you use to stop dogs from chewing on stuff--not harmful just yucky tasting maybe you could discourage her touching them at all)
OR
Could you put a dog cone on her? You know, the ones you use for dogs (again with the doggy stuff -- I have dogs too) when you don't want them to lick wounds or sores.
That's all I can think of at the moment.
Could you put Bitter Apple on her teats (it's the stuff you use to stop dogs from chewing on stuff--not harmful just yucky tasting maybe you could discourage her touching them at all)
OR
Could you put a dog cone on her? You know, the ones you use for dogs (again with the doggy stuff -- I have dogs too) when you don't want them to lick wounds or sores.
That's all I can think of at the moment.