| A 12 is pushing it. If it were me, I really wouldnt go bigger than a 14 or 12 in my cartilage. You definitely can go bigger than an 18, but dont go too big.
Your cartilage can take up to a year to heal fully. It is best to wait until it is fully healed before you try to gauge it. The slightest irritation can cause your cartilage piercing to get "angry", trust me. I went swimming after having the piercing for a month and my industrial got irritated, so I would wait before you gauge it. |