K so I noticed mt goldfish swimming upside down for a couple days so I put him in a medicated tank. He seemed to get better and started swimming normal again. Then I noticed a red mark on its right side and the scales were kind of ruffled. So I thought he had dropsy. Well as the days went on he flipped over again and has been this way for a bout a week. I used epson salt like I was instructed to do. Well he seems to be getting worse. His under fin is almost completely red it looks like broken blood vessles. I think he is suffering. Should I put him down or keep trying? Its been about 2 weeks now. Please help I don't know what to do anymore. 
