All of the horses are wormed regulary. So I dont think it can be that.
I hate to say this, but I don't think the vet did enough either. Either senairo is not good.
I can understand, I guess, him not wanting to palpaite her if she was kicking, but I really think he should have, or at least advised you to either bring her in so she could be put in stocks, or hobbled her or something. I would think a vet would know what to do to get the job done.
IMO, you really don't know anymore then you knew before he came.
Becky