Ok so a few weeks ago our dwarf gourami had severe abdominal swelling and wasn’t eating. We isolated him, gave him some epsom salt. He started pooping but it was stringy and white so we started giving him internal parasite medicine. Throughout this he developed a sore which grows white fuzz. The swelling is down and he is back to normal in that regard but the sore is still there and fuzzes off and on. He is in isolation and is taking a general fungal medicine. Any advice? How long will this take to heal?