Read loud and clear!
I had a look online for vetericyn, but it seems I can only get it online even from Pets at Home so I'm in the same boat as the Betadine. It's 6pm here now so everywhere is closed, but tommorow I will have a look around and see what I can find.
I've read online that saline solution can be used on snakes, so I might grab Peachy in a bit and use a syringe to flush it out.