I've always had horses, but I'm new to goats. We took our two boys to be wethered today; the little one got away with a banding, but the bigger one had to be castrated, straight out. So, our Nigerian Dwarf was given an IV injection of Xylazine. How do we help him recover? He's completely knocked out, can't even lift his head, drooling and gassy. We've got penicillin, as our vet advised, and are keeping him propped up right, not letting him lie flat. Our vet had an emergency case come in, as we were finishing up, and couldn't explain much else to do. What else do we do for him?