I'm sorry he's sick, kidwicked. Can you tell me a few things about him and your tank.
How long have you had him?
What size tank was he in before you put him in the hospital?
How long did you have that tank set up?
Was it fully cycled?
Do you regularly test the parameters, what kind of testing equipment; liquid or strips?
What were your parameters in the tank: ammonia, nitrite, nitrate, ph, temperature, gh and kh if you know those, too.
What kind of filtration?
What substrate?
What other occupants were in the tank with him; type and numbers of each?
What is your maintenance schedule: water change frequency and volume, type of water conditioner to remove chlorine and chloramine, and do you vacuum the substrate?
What kind of cleaning and maintenance of your filter.
Feeding schedule and type of food?
When did you first observe these symptoms?
What has his behavior been like?
Is he eating?
I hope we can help, but we need more information.
I downloaded the pics of him, and enlarged them so I could see as much as possible. It looks to me that in one of the pics I can see what looks like light colored spots beneath the redness, as when a boil or pimple starts coming to a head. Is that what I'm seeing? Enlarging the photo makes it really grainy, so I wasn't sure.
You mentioned also that his eyes seem to be bulging. That symptom along with the redness suggest a bacterial infection and I believe it's pretty serious. Melafix is can help with minor problems, but I believe he's going to need some serious medicine right away, but we really need the answers to the questions.