Only macro that gets on me nerves as a healer is the ones tanks like to make for pacification, I already esuna when I see the big red W and don't need a heads up as I have you on target anyway. Only thing this does is allow you to wait out the few seconds it takes to wear on its own. I am not the only healer that does this either as Ive been told be a few of my friends. I always try and get it as long as I'm not in the middle of a cast you will get esuna, unless you have the macro.