Such a sad situation and I'm sorry that you're having to go through this. You have definitely spent much more than the average person would have spent on a hedgehog or any animal for that matter. We've been in similar situations twice in the past....once with cat that we spent $2000 on, and the other was our dog that we spent nearly $3000 on. We didn't have the money at the time, so we used our credit cards and then stayed home for months eating mac-n-cheese and beanie weenies for supper. But neither of these situations were similar to Cloud, in the respect that it sounds like Cloud is nearing the end of the Rainbow Bridge. In this case, I believe that you should never let an animal suffer. I'd keep him on the antibiotics and do your best to keep him comfortable for as long as you can. But don't question yourself anymore, as you have done your best and the best that you could afford to do. It's possible that spending more money still would not save him. Feel proud that you've given the little one a good home and a good life! When the time comes, keep you head held high and know that he will no longer be suffering as he crosses the Rainbow Bridge.
Best wishes and hugs from all of us a Pixie's Exotic Hedgies!
Best wishes and hugs from all of us a Pixie's Exotic Hedgies!