youll kill all your live rock with copper and the tank will be unuseable for reefs/inverts in the future.
if youre having disease issues, you need to treat the cause. adding meds without knowing the cause isnt going to get you anywhere. you'll treat and the signs will be gone and then once you stop theyll get sick again.
test your water with quality test kits and maintain a tank without stressors. your tank may be overstocked, overfed, or more than likely, undermaintained. this is all common with FOWLR because you're semi new to sw, right? give us more info and ill be able to give you specific things you can do instead of bombing the tank with these stressful meds and methodologies.
water sample tests
tank size and fish kept