How much of the aq salt per gall you was adding? i added one tea-spoon
How long you was treating him with salt? This is the only thing i've used
Do you have stress coat? Stress coat has Aloe Vera in it and helps with healing. No i'm unsure what that is.
i'm gonna use ur dixie cup idea atm i have his hospital tank set up and i'm heating up the water i'm gonna put him in the dixie cup and float it in there so he can use to that temp i'm trying to make it like the water in his 5 gal tank. This way i can do the 50% water changes at lot easyer. I also did add one tea-spoon of salt to help him out as well.