If you wish to try here is a suggestion. I have not done this but others have been successful.
1. First step on treating him before we introduce medication is Salt baths. Simply purchase AQUARIUM salt at any local fish store you have they always have it and its cheap. API makes it as well. Next get your 10gallon tank ready fill it hald way with water. Next get a bucket of water treated with a good water conditioner like Prime. Dose the water in the bucket and wait 10 mins for the water conditioner to soak into the water. Once thats done get 2 and a half cups of Aquarium salt and let it dosolve in the bucket of treated water. You will have to stir it a couple of times. Next pour it into the 10gal tank and net your fish and drop him in there. Let him bathe in it for 5-10 mins. If he looks stressed and starts to jitter or spaz then remove him immedaitely. Do this every day for 3 days.
On the fourth day observe him to see if he's gotten better. If his condition has improved then stop with the salt baths and give him frequent water changes with a good water conditioner. Frequent meaning everyday 10% water change. Also dose 1tsp of salt after the water change.
If his condition HASNT improved in any way then its time for medication.
You will need to purchase "Maracyn II." You can get this at any LFS even petsmart. Next setup a nice home for 5 days in your 10gal QT. The maracyn II has pre-dosed packets so its a no brainer. Simply on the first day Add 2 packets of maracyn II to the tank (Per 10 gallons). Second through 5th day, add the contents of 1 packet per 10 gallons of water. Treat for a full 5 days even if he shows signs of improvement! This will help his pop-eye.
