Got a new little gal over the weekend, 4 months old, with little horns. I am going to attempt to use bands to dehorn her. My question is, having never done this before, do I need to burn what remains afterwards? Which is better, paste or iron? And will the horns come back and need to be rebanded? I read a lot on here about doing this but wasn't sure if the first round of banding was the last or will I need to continue with it?