Makes it easier
Furan 2 and kanaplax in combination. May need a second course.
I wouldnít add any new fish for at least a month.
Keep water temp same or slightly lower to slow down bacterial infection.
Salt, dips, etc, etc can be used to clean up a massive infection but Iíve never had any luck with them by themselves.
Triple sulpha and a medicated antibiotics feed (one of the tetracycline Group or another that escapes me), may also work (what we can get over the counter in Australia) but furan 2 is a newer, better med.