Oh boy, I’ve got lumpy fish for life ;BoredLooks as though your fish have possibly had more than one disease issue throughout this entire ordeal.
What remains are the "bumps." Because the "bumps" are continuing to come and go, appears to confirm that at this time, what's left is Lymphocysitis. Note the underlined passages.
From Humblefish:
Lymphocystis:
Symptoms - Lymphocystis appears as a white or beige colored cauliflower-like growth that usually starts on the fins and spines and sometimes spreads to the body. Initially it may be small (looks like ich), and then grows in size (which is how you know it’s not ich). Lympho is a virus that many fish carry for life. Fortunately, it is rarely fatal or even harmful to the fish, and symptoms will come and go.