Wow,
I still have some injectable antibiotics from
Dr. Jenkins clinic
We may be able to give some to him some.
IF his eye is "gone" then he's got some deep infections
Sunlight and fresh air are in order with a plant filled cage are in order.
I would also start thinking about watering him with gatorade or pedialyte
vs just plain old tap water. If he's thirsty and hungry enough, he'll take it.
I've also medicated some of my animals with a large syringe loaded up with
mashed crickets (insects), vitamins and gatorade to feed in a emergency situation.
Once they taste the crickets they tend to gulp the entire syringe down -np.
No matter what you try to do he's going to be fighting some infections
so you've gotta get him filled and hydrated.
I've lost some animals over the years and it's frustrating to deal with
something like this.. I know.
but I'm willing to try to help out.