Hi, MOsborne I just wanted you to know you're not alone! Currently, my favorite fish buddy has dropsy. At first, I couldn't really tell if he had it, now I'm definitely sure. He's certainly not as bloated as yours was in the picture though!
Anyway, this is what I'm doing now that may help you. I found some medicated food that I was referred to by a knowledgeable person. The stuff is called Metro Meds and is best taken when at the first signs of dropsy. I ordered the stuff a day ago and also added epsom salt to the tank. Hopefully, the epsom can reduce the swelling just a bit at least so my fishy buddy can survive at least till the medicated food gets here.
Anyway, you can get this stuff at
http://www.goldfishconnection.com/
Also, you can try Medi-Gold, though I was told the Metro Med was a bit better. Everyone, pray for my success. I was actually thinking my guy was doomed, but was inspired into further action when I read about a successful severe dropsy case. I will update when new stuff happens.