OMG POOR Thing ! That's horrible and infected stitches HURTS ! and hurts bad - they should have numbed the spot at the very least - I would have gone ballistic too and you had every right to get mad - that's just MEAN and lazy on the vets part.
Sending her lots of get well wishes and a hug...that really sucked.
what a brave girl if she ever walks on her own into any vets office again - that really made me cringe...