My cat brought home what I think is a 5 week old grey. Nothing broken or outwardly injured. Took fluids, kitten milk and poops well. Just today I thought he may have scratched his eye. It was red and weeping. I looked really close and it had tiny worms in his left eye. Then I looked further and found an open wound about the size of a pencil eraser. It was filled with maggots. What do I do?? I've spoken to wildlife rehabs in the area and they all want to euthanize him because he's not a native species. I don't know if I should take him to an emergency vet and get started on abx. Please advise!!