A week ago I noticed my 12" shubunkin had what appeared to be a fleshy lump right on the top of it's eye, now it looks almost like the inside of the eye is squeezing out the top. I have been treating with melafix and primafix for two days.
sounds like your treating okay..sounds like an injury to me ..that may have become infected with bacteria or fungus... hope your shebunken does okay..you must have had it quite a while to get it to 12 inches.. mine are 9 years old and about that from head to tail...