This is what the eye looks like. I keep trying to get that area in the corner cleaned up but nothing going on.You got a photo of the other eye?
Let's see that goop. It may be pus that needs to be pressed out. Chicken pus is often a waxy semi hard cheese like material that has to be physically removed. It doesn't dry up on it's own.
So he just managed to pull his legs up underneath him to try and pseudo-sit like he is laying down somewhat normal!! This is amazing progression for just one day!The green color is likely from not eating.
The explosive, well...probably from not eating, a change in the diet, stress.
If you have them or if it's doable, puppy pads may be a good idea to use, that way you aren't having to try to wash towels so much.
Possible the antibiotics are causing some upset as well. You can always introduce a Tablespoon of plain quality yogurt or a little buttermilk to help sooth the gut and provide probiotics.
Electrolytes are fine to give for a short period of time, but alternate with fresh plain water.
Pedialyte or Gatorade can be used, but I would be hesitant to use one that is sugar free (artificial sweeteners).
Some folks make their own electrolytes:
1/2 cup hot water, 1/2 tsp salt, 1/2 tsp baking soda, 1tsp jello powder and 1 1/2 tlbs sugar Mix and then combine with 3 1/2 cups cold water. (this is from another educator Azygous)
What does he normally eat, do you know? I would continue with what you are doing, but you may need to introduce a very small amount of white cooked rice along with the yogurt or buttermilk, this can help with loose stools as well.