i have had great success with API super ick cure. It contains malachite green and within 3-4 days all the signs of ick disappeared in my tank. When using this increase the temperature of the tank gradually until about 84 degrees. And just stick to the general directions on the back.
I use Quick Cure, its really fast. If you can't find it than RidIck is good too, same effective medication in them both I think. (most of those dark die-ish medications will work) Copper is probly not that effective agenst Ick....I dont really like copper for anything really.