Most of my experience with it has been as long as the fish acts normal and eats then all will be good. The vitamins are to strengthen, the garlic is to get them to eat, main thing is to not freak the fish out anymore than it already is. Like most have told you - remove the fish as a last resort and remember that the ick will always be there in some form. Glad the fish appears to be better today, keep us updated.
John
"Critics are men who watch a battle from a high place and then come down and shoot the survivors." Ernest Hemingway